2212202121100 has 72 divisors (see below), whose sum is σ = 4829353401600. Its totient is φ = 879574209600.

The previous prime is 2212202121089. The next prime is 2212202121113. The reversal of 2212202121100 is 11212022122.

It is a happy number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 11065831 + ... + 11263969.

It is an arithmetic number, because the mean of its divisors is an integer number (67074352800).

Almost surely, 2^{2212202121100} is an apocalyptic number.

2212202121100 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2212202121100 is an abundant number, since it is smaller than the sum of its proper divisors (2617151280500).

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

2212202121100 is a wasteful number, since it uses less digits than its factorization.

2212202121100 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 198823 (or 198816 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 16.

Adding to 2212202121100 its reverse (11212022122), we get a palindrome (2223414143222).

The spelling of 2212202121100 in words is "two trillion, two hundred twelve billion, two hundred two million, one hundred twenty-one thousand, one hundred".