121211021022 has 64 divisors (see below), whose sum is σ = 305304384000. Its totient is φ = 31224299904.

The previous prime is 121211021021. The next prime is 121211021027. The reversal of 121211021022 is 220120112121.

It is a super-2 number, since 2×121211021022² (a number of 23 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 121211020992 and 121211021010.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (121211021021) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 2557897 + ... + 2604852.

It is an arithmetic number, because the mean of its divisors is an integer number (4770381000).

Almost surely, 2^121211021022 is an apocalyptic number.

121211021022 is an abundant number, since it is smaller than the sum of its proper divisors (184093362978).

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

121211021022 is a wasteful number, since it uses less digits than its factorization.

121211021022 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5162817.

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

Adding to 121211021022 its reverse (220120112121), we get a palindrome (341331133143).

The spelling of 121211021022 in words is "one hundred twenty-one billion, two hundred eleven million, twenty-one thousand, twenty-two".