2220121122220 has 12 divisors (see below), whose sum is σ = 4662254356704. Its totient is φ = 888048448880.

The previous prime is 2220121122211. The next prime is 2220121122253. The reversal of 2220121122220 is 222211210222.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 55503028036 + ... + 55503028075.

It is an arithmetic number, because the mean of its divisors is an integer number (388521196392).

Almost surely, 2^{2220121122220} is an apocalyptic number.

2220121122220 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2220121122220 is an abundant number, since it is smaller than the sum of its proper divisors (2442133234484).

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

2220121122220 is a wasteful number, since it uses less digits than its factorization.

2220121122220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 111006056120 (or 111006056118 counting only the distinct ones).

The product of its (nonzero) digits is 256, while the sum is 19.

Adding to 2220121122220 its reverse (222211210222), we get a palindrome (2442332332442).

The spelling of 2220121122220 in words is "two trillion, two hundred twenty billion, one hundred twenty-one million, one hundred twenty-two thousand, two hundred twenty".