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1020112210212 = 223377732972251
BaseRepresentation
bin11101101100000110110…
…11010000100100100100
310121112002101002120012120
432312003123100210210
5113203142211211322
62100344424545540
7133462221501264
oct16660333204444
93545071076176
101020112210212
11363699826127
121458556222b0
1375271ca0844
14375335bb7a4
151b807299a5c
hexed836d0924

1020112210212 has 48 divisors (see below), whose sum is σ = 2447756523072. Its totient is φ = 330419088000.

The previous prime is 1020112210177. The next prime is 1020112210237. The reversal of 1020112210212 is 2120122110201.

It is a super-2 number, since 2×10201122102122 (a number of 25 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 1020112210191 and 1020112210200.

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, 1142914 + ... + 1829337.

It is an arithmetic number, because the mean of its divisors is an integer number (50994927564).

Almost surely, 21020112210212 is an apocalyptic number.

1020112210212 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

1020112210212 is an abundant number, since it is smaller than the sum of its proper divisors (1427644312860).

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

1020112210212 is a wasteful number, since it uses less digits than its factorization.

1020112210212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2973068 (or 2973066 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 15.

Adding to 1020112210212 its reverse (2120122110201), we get a palindrome (3140234320413).

The spelling of 1020112210212 in words is "one trillion, twenty billion, one hundred twelve million, two hundred ten thousand, two hundred twelve".

Divisors: 1 2 3 4 6 12 37 74 111 148 222 444 773 1546 2319 3092 4638 9276 28601 57202 85803 114404 171606 343212 2972251 5944502 8916753 11889004 17833506 35667012 109973287 219946574 329919861 439893148 659839722 1319679444 2297550023 4595100046 6892650069 9190200092 13785300138 27570600276 85009350851 170018701702 255028052553 340037403404 510056105106 1020112210212