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10122022212 = 223843501851
BaseRepresentation
bin10010110110101000…
…11100110101000100
3222010102101000010120
421123110130311010
5131212214202322
64352222021540
7505555524561
oct113324346504
928112330116
1010122022212
114324688115
121b65a178b0
13c54071973
146c0447868
153e3962a5c
hex25b51cd44

10122022212 has 12 divisors (see below), whose sum is σ = 23618051856. Its totient is φ = 3374007400.

The previous prime is 10122022187. The next prime is 10122022213. The reversal of 10122022212 is 21222022101.

It is a tau number, because it is divible by the number of its divisors (12).

It is a junction number, because it is equal to n+sod(n) for n = 10122022191 and 10122022200.

It is not an unprimeable number, because it can be changed into a prime (10122022213) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 421750914 + ... + 421750937.

It is an arithmetic number, because the mean of its divisors is an integer number (1968170988).

Almost surely, 210122022212 is an apocalyptic number.

10122022212 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

10122022212 is an abundant number, since it is smaller than the sum of its proper divisors (13496029644).

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

10122022212 is a wasteful number, since it uses less digits than its factorization.

10122022212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 843501858 (or 843501856 counting only the distinct ones).

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

Adding to 10122022212 its reverse (21222022101), we get a palindrome (31344044313).

The spelling of 10122022212 in words is "ten billion, one hundred twenty-two million, twenty-two thousand, two hundred twelve".

Divisors: 1 2 3 4 6 12 843501851 1687003702 2530505553 3374007404 5061011106 10122022212