100212210121210 has 128 divisors (see below), whose sum is σ = 203046391692288. Its totient is φ = 35296778880000.

The previous prime is 100212210121181. The next prime is 100212210121223. The reversal of 100212210121210 is 12121012212001.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 1218181480 + ... + 1218263740.

It is an arithmetic number, because the mean of its divisors is an integer number (1586299935096).

Almost surely, 2^{100212210121210} is an apocalyptic number.

100212210121210 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

100212210121210 is an abundant number, since it is smaller than the sum of its proper divisors (102834181571078).

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

100212210121210 is a wasteful number, since it uses less digits than its factorization.

100212210121210 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 84760.

The product of its (nonzero) digits is 32, while the sum is 16.

Adding to 100212210121210 its reverse (12121012212001), we get a palindrome (112333222333211).

The spelling of 100212210121210 in words is "one hundred trillion, two hundred twelve billion, two hundred ten million, one hundred twenty-one thousand, two hundred ten".