10012121210 has 32 divisors (see below), whose sum is σ = 22180701312. Its totient is φ = 3168671040.

The previous prime is 10012121159. The next prime is 10012121267. The reversal of 10012121210 is 1212121001.

It is a super-2 number, since 2×10012121210² (a number of 21 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 10012121191 and 10012121200.

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, 5500256 + ... + 5502075.

It is an arithmetic number, because the mean of its divisors is an integer number (693146916).

Almost surely, 2^10012121210 is an apocalyptic number.

10012121210 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

10012121210 is an abundant number, since it is smaller than the sum of its proper divisors (12168580102).

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

10012121210 is a wasteful number, since it uses less digits than its factorization.

10012121210 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11002358.

The product of its (nonzero) digits is 8, while the sum is 11.

Adding to 10012121210 its reverse (1212121001), we get a palindrome (11224242211).

The spelling of 10012121210 in words is "ten billion, twelve million, one hundred twenty-one thousand, two hundred ten".