121031322220 has 12 divisors (see below), whose sum is σ = 254165776704. Its totient is φ = 48412528880.

The previous prime is 121031322157. The next prime is 121031322221. The reversal of 121031322220 is 22223130121.

It is not an unprimeable number, because it can be changed into a prime (121031322221) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3025783036 + ... + 3025783075.

It is an arithmetic number, because the mean of its divisors is an integer number (21180481392).

Almost surely, 2^121031322220 is an apocalyptic number.

121031322220 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

121031322220 is an abundant number, since it is smaller than the sum of its proper divisors (133134454484).

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

121031322220 is a wasteful number, since it uses less digits than its factorization.

121031322220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6051566120 (or 6051566118 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 19.

Adding to 121031322220 its reverse (22223130121), we get a palindrome (143254452341).

The spelling of 121031322220 in words is "one hundred twenty-one billion, thirty-one million, three hundred twenty-two thousand, two hundred twenty".