121211210022 has 32 divisors (see below), whose sum is σ = 277078732800. Its totient is φ = 34628707008.

The previous prime is 121211210017. The next prime is 121211210033. The reversal of 121211210022 is 220012112121.

It is a junction number, because it is equal to n+sod(n) for n = 121211209983 and 121211210010.

It is a congruent number.

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, 375354 + ... + 619122.

It is an arithmetic number, because the mean of its divisors is an integer number (8658710400).

Almost surely, 2^121211210022 is an apocalyptic number.

121211210022 is an abundant number, since it is smaller than the sum of its proper divisors (155867522778).

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

121211210022 is a wasteful number, since it uses less digits than its factorization.

121211210022 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 255620.

The product of its (nonzero) digits is 32, while the sum is 15.

Adding to 121211210022 its reverse (220012112121), we get a palindrome (341223322143).

The spelling of 121211210022 in words is "one hundred twenty-one billion, two hundred eleven million, two hundred ten thousand, twenty-two".