121111202012022 has 24 divisors (see below), whose sum is σ = 262867162357800. Its totient is φ = 40299699440160.

The previous prime is 121111202011993. The next prime is 121111202012039. The reversal of 121111202012022 is 220210202111121.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a junction number, because it is equal to n+sod(n) for n = 121111202011986 and 121111202012004.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 5891758647 + ... + 5891779202.

It is an arithmetic number, because the mean of its divisors is an integer number (10952798431575).

Almost surely, 2^{121111202012022} is an apocalyptic number.

121111202012022 is an abundant number, since it is smaller than the sum of its proper divisors (141755960345778).

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

121111202012022 is a wasteful number, since it uses less digits than its factorization.

121111202012022 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11783538428 (or 11783538425 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 18.

Adding to 121111202012022 its reverse (220210202111121), we get a palindrome (341321404123143).

Subtracting 121111202012022 from its reverse (220210202111121), we obtain a palindrome (99099000099099).

The spelling of 121111202012022 in words is "one hundred twenty-one trillion, one hundred eleven billion, two hundred two million, twelve thousand, twenty-two".