121022332220 has 24 divisors (see below), whose sum is σ = 254157372000. Its totient is φ = 48406937792.

The previous prime is 121022332147. The next prime is 121022332229. The reversal of 121022332220 is 22233220121.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (20).

It is a junction number, because it is equal to n+sod(n) for n = 121022332192 and 121022332201.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (121022332229) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 433706 + ... + 655854.

It is an arithmetic number, because the mean of its divisors is an integer number (10589890500).

Almost surely, 2^121022332220 is an apocalyptic number.

121022332220 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

121022332220 is an abundant number, since it is smaller than the sum of its proper divisors (133135039780).

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

121022332220 is a wasteful number, since it uses less digits than its factorization.

121022332220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 249397 (or 249395 counting only the distinct ones).

The product of its (nonzero) digits is 576, while the sum is 20.

Adding to 121022332220 its reverse (22233220121), we get a palindrome (143255552341).

The spelling of 121022332220 in words is "one hundred twenty-one billion, twenty-two million, three hundred thirty-two thousand, two hundred twenty".