121122011111022 has 48 divisors (see below), whose sum is σ = 262662493307760. Its totient is φ = 40338408777216.

The previous prime is 121122011111011. The next prime is 121122011111029. The reversal of 121122011111022 is 220111110221121.

It is a happy number.

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 = 121122011110986 and 121122011111004.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (121122011111029) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 92099104 + ... + 93404972.

It is an arithmetic number, because the mean of its divisors is an integer number (5472135277245).

Almost surely, 2^{121122011111022} is an apocalyptic number.

121122011111022 is an abundant number, since it is smaller than the sum of its proper divisors (141540482196738).

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

121122011111022 is a wasteful number, since it uses less digits than its factorization.

121122011111022 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1310417 (or 1310414 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 18.

Adding to 121122011111022 its reverse (220111110221121), we get a palindrome (341233121332143).

The spelling of 121122011111022 in words is "one hundred twenty-one trillion, one hundred twenty-two billion, eleven million, one hundred eleven thousand, twenty-two".