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1020120202212 = 223377132360113
BaseRepresentation
bin11101101100000111110…
…01101111101111100100
310121112002221010121011120
432312003321233233210
5113203201232432322
62100345312133540
7133462346435466
oct16660371575744
93545087117146
101020120202212
113636a3294691
121458582372b0
137527383b437
143753469c136
151b807d27a5c
hexed83e6fbe4

1020120202212 has 48 divisors (see below), whose sum is σ = 2479043613312. Its totient is φ = 326189928960.

The previous prime is 1020120202169. The next prime is 1020120202261. The reversal of 1020120202212 is 2122020210201.

It is a super-2 number, since 2×10201202022122 (a number of 25 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 1020120202191 and 1020120202200.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 16148533 + ... + 16211580.

It is an arithmetic number, because the mean of its divisors is an integer number (51646741944).

Almost surely, 21020120202212 is an apocalyptic number.

1020120202212 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

1020120202212 is an abundant number, since it is smaller than the sum of its proper divisors (1458923411100).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1020120202212 is a wasteful number, since it uses less digits than its factorization.

1020120202212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 32360228 (or 32360226 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 15.

Adding to 1020120202212 its reverse (2122020210201), we get a palindrome (3142140412413).

The spelling of 1020120202212 in words is "one trillion, twenty billion, one hundred twenty million, two hundred two thousand, two hundred twelve".

Divisors: 1 2 3 4 6 12 37 71 74 111 142 148 213 222 284 426 444 852 2627 5254 7881 10508 15762 31524 32360113 64720226 97080339 129440452 194160678 388321356 1197324181 2297568023 2394648362 3591972543 4595136046 4789296724 6892704069 7183945086 9190272092 13785408138 14367890172 27570816276 85010016851 170020033702 255030050553 340040067404 510060101106 1020120202212