121211212020022 has 32 divisors (see below), whose sum is σ = 193930816302720. Its totient is φ = 56654135622720.

The previous prime is 121211212019881. The next prime is 121211212020037. The reversal of 121211212020022 is 220020212112121.

It is a Harshad number since it is a multiple of its sum of digits (19).

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, 21135663 + ... + 26251450.

It is an arithmetic number, because the mean of its divisors is an integer number (6060338009460).

Almost surely, 2^{121211212020022} is an apocalyptic number.

121211212020022 is a deficient number, since it is larger than the sum of its proper divisors (72719604282698).

121211212020022 is a wasteful number, since it uses less digits than its factorization.

121211212020022 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 47388028.

The product of its (nonzero) digits is 128, while the sum is 19.

Adding to 121211212020022 its reverse (220020212112121), we get a palindrome (341231424132143).

The spelling of 121211212020022 in words is "one hundred twenty-one trillion, two hundred eleven billion, two hundred twelve million, twenty thousand, twenty-two".