121211102010 has 32 divisors (see below), whose sum is σ = 298768989312. Its totient is φ = 31449366720.

The previous prime is 121211101967. The next prime is 121211102041. The reversal of 121211102010 is 10201112121.

121211102010 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

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, 54598486 + ... + 54600705.

It is an arithmetic number, because the mean of its divisors is an integer number (9336530916).

Almost surely, 2^121211102010 is an apocalyptic number.

121211102010 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

121211102010 is an abundant number, since it is smaller than the sum of its proper divisors (177557887302).

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

121211102010 is a wasteful number, since it uses less digits than its factorization.

121211102010 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 109199238.

The product of its (nonzero) digits is 8, while the sum is 12.

Adding to 121211102010 its reverse (10201112121), we get a palindrome (131412214131).

The spelling of 121211102010 in words is "one hundred twenty-one billion, two hundred eleven million, one hundred two thousand, ten".