2211210022220 has 24 divisors (see below), whose sum is σ = 4712847632304. Its totient is φ = 871282754496.

The previous prime is 2211210022127. The next prime is 2211210022261. The reversal of 2211210022220 is 222200121122.

It is a happy number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 825077027 + ... + 825079706.

It is an arithmetic number, because the mean of its divisors is an integer number (196368651346).

Almost surely, 2^{2211210022220} is an apocalyptic number.

2211210022220 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2211210022220 is an abundant number, since it is smaller than the sum of its proper divisors (2501637610084).

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

2211210022220 is a wasteful number, since it uses less digits than its factorization.

2211210022220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1650156809 (or 1650156807 counting only the distinct ones).

The product of its (nonzero) digits is 128, while the sum is 17.

Adding to 2211210022220 its reverse (222200121122), we get a palindrome (2433410143342).

The spelling of 2211210022220 in words is "two trillion, two hundred eleven billion, two hundred ten million, twenty-two thousand, two hundred twenty".