3221222202120 has 128 divisors (see below), whose sum is σ = 10407806640000. Its totient is φ = 792856725504.

The previous prime is 3221222202109. The next prime is 3221222202131. The reversal of 3221222202120 is 212022221223.

It is an interprime number because it is at equal distance from previous prime (3221222202109) and next prime (3221222202131).

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 22897756 + ... + 23038004.

It is an arithmetic number, because the mean of its divisors is an integer number (81310989375).

Almost surely, 2^{3221222202120} is an apocalyptic number.

3221222202120 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is an amenable number.

3221222202120 is an abundant number, since it is smaller than the sum of its proper divisors (7186584437880).

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

3221222202120 is a wasteful number, since it uses less digits than its factorization.

3221222202120 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 154999 (or 154995 counting only the distinct ones).

The product of its (nonzero) digits is 768, while the sum is 21.

Adding to 3221222202120 its reverse (212022221223), we get a palindrome (3433244423343).

The spelling of 3221222202120 in words is "three trillion, two hundred twenty-one billion, two hundred twenty-two million, two hundred two thousand, one hundred twenty".