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1211202011002 = 21579383534519
BaseRepresentation
bin10001101000000001010…
…000111111111101111010
311021210022202021020012211
4101220001100333331322
5124321020203323002
62324230222325334
7153335500140154
oct21500120777572
94253282236184
101211202011002
11427738a60825
121768a512984a
138a2a6321a99
14428a0181ad4
152178d37edd7
hex11a0143ff7a

1211202011002 has 8 divisors (see below), whose sum is σ = 1817953624800. Its totient is φ = 605217469404.

The previous prime is 1211202010981. The next prime is 1211202011011. The reversal of 1211202011002 is 2001102021121.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a super-2 number, since 2×12112020110022 (a number of 25 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 191764102 + ... + 191770417.

It is an arithmetic number, because the mean of its divisors is an integer number (227244203100).

Almost surely, 21211202011002 is an apocalyptic number.

1211202011002 is a deficient number, since it is larger than the sum of its proper divisors (606751613798).

1211202011002 is a wasteful number, since it uses less digits than its factorization.

1211202011002 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 383536100.

The product of its (nonzero) digits is 16, while the sum is 13.

Adding to 1211202011002 its reverse (2001102021121), we get a palindrome (3212304032123).

The spelling of 1211202011002 in words is "one trillion, two hundred eleven billion, two hundred two million, eleven thousand, two".

Divisors: 1 2 1579 3158 383534519 767069038 605601005501 1211202011002