121012211210110 has 128 divisors (see below), whose sum is σ = 242037415595520. Its totient is φ = 43189578432000.

The previous prime is 121012211210071. The next prime is 121012211210141. The reversal of 121012211210110 is 11012112210121.

It is a congruent number.

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, 12222216160 + ... + 12222226060.

It is an arithmetic number, because the mean of its divisors is an integer number (1890917309340).

Almost surely, 2^{121012211210110} is an apocalyptic number.

121012211210110 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

121012211210110 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

121012211210110 is a wasteful number, since it uses less digits than its factorization.

121012211210110 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12794.

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

Adding to 121012211210110 its reverse (11012112210121), we get a palindrome (132024323420231).

It can be divided in two parts, 12101221 and 1210110, that added together give a palindrome (13311331).

The spelling of 121012211210110 in words is "one hundred twenty-one trillion, twelve billion, two hundred eleven million, two hundred ten thousand, one hundred ten".