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1202020121212 = 2241471574012477
BaseRepresentation
bin10001011111011101111…
…110110111101001111100
311020220121211220220022121
4101133131332313221330
5124143214122334322
62320111142452324
7152562115310161
oct21373576675174
94226554826277
101202020121212
11423857027059
12174b621340a4
1389471c886c1
144226c940068
1521402224ec7
hex117ddfb7a7c

1202020121212 has 96 divisors (see below), whose sum is σ = 2221125048576. Its totient is φ = 568568832000.

The previous prime is 1202020121179. The next prime is 1202020121227. The reversal of 1202020121212 is 2121210202021.

It is a happy number.

It is a super-2 number, since 2×12020201212122 (a number of 25 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 485271318 + ... + 485273794.

It is an arithmetic number, because the mean of its divisors is an integer number (23136719256).

Almost surely, 21202020121212 is an apocalyptic number.

It is an amenable number.

1202020121212 is a deficient number, since it is larger than the sum of its proper divisors (1019104927364).

1202020121212 is a wasteful number, since it uses less digits than its factorization.

1202020121212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3127 (or 3125 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 16.

Adding to 1202020121212 its reverse (2121210202021), we get a palindrome (3323230323233).

The spelling of 1202020121212 in words is "one trillion, two hundred two billion, twenty million, one hundred twenty-one thousand, two hundred twelve".

Divisors: 1 2 4 41 47 82 94 157 164 188 314 401 628 802 1604 1927 2477 3854 4954 6437 7379 7708 9908 12874 14758 16441 18847 25748 29516 32882 37694 62957 65764 75388 101557 116419 125914 203114 232838 251828 302539 388889 406228 465676 605078 772727 777778 993277 1210156 1545454 1555556 1986554 2581237 2958979 3090908 3973108 4773179 5162474 5917958 9546358 10324948 11835916 15944449 18277783 19092716 31888898 36555566 40724357 46684019 63777796 73111132 81448714 93368038 121318139 155944489 162897428 186736076 242636278 311888978 485272556 623777956 749389103 1498778206 1914044779 2997556412 3828089558 6393724049 7329390983 7656179116 12787448098 14658781966 25574896196 29317563932 300505030303 601010060606 1202020121212