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10121031212 = 2211092281567
BaseRepresentation
bin10010110110100001…
…01010111000101100
3222010100111122201212
421123100222320230
5131211440444322
64352144453552
7505544226425
oct113320527054
928110448655
1010121031212
114324070606
121b6561a2b8
13c53ab5886
146c026a64c
153e38190e2
hex25b42ae2c

10121031212 has 12 divisors (see below), whose sum is σ = 17727783360. Its totient is φ = 5055950256.

The previous prime is 10121031211. The next prime is 10121031223. The reversal of 10121031212 is 21213012101.

It is not an unprimeable number, because it can be changed into a prime (10121031211) 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, 1136348 + ... + 1145219.

It is an arithmetic number, because the mean of its divisors is an integer number (1477315280).

Almost surely, 210121031212 is an apocalyptic number.

It is an amenable number.

10121031212 is a deficient number, since it is larger than the sum of its proper divisors (7606752148).

10121031212 is a wasteful number, since it uses less digits than its factorization.

10121031212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2282680 (or 2282678 counting only the distinct ones).

The product of its (nonzero) digits is 24, while the sum is 14.

Adding to 10121031212 its reverse (21213012101), we get a palindrome (31334043313).

The spelling of 10121031212 in words is "ten billion, one hundred twenty-one million, thirty-one thousand, two hundred twelve".

Divisors: 1 2 4 1109 2218 4436 2281567 4563134 9126268 2530257803 5060515606 10121031212