2111220001100 has 72 divisors (see below), whose sum is σ = 5236219631328. Its totient is φ = 723792384000.

The previous prime is 2111220001067. The next prime is 2111220001129. The reversal of 2111220001100 is 11000221112.

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, 9814700 + ... + 10027500.

Almost surely, 2^{2111220001100} is an apocalyptic number.

2111220001100 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2111220001100 is an abundant number, since it is smaller than the sum of its proper divisors (3124999630228).

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

2111220001100 is a wasteful number, since it uses less digits than its factorization.

2111220001100 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 226995 (or 226988 counting only the distinct ones).

The product of its (nonzero) digits is 8, while the sum is 11.

Adding to 2111220001100 its reverse (11000221112), we get a palindrome (2122220222212).

The spelling of 2111220001100 in words is "two trillion, one hundred eleven billion, two hundred twenty million, one thousand, one hundred".