2221020011100 has 72 divisors (see below), whose sum is σ = 7010346809088. Its totient is φ = 538429092800.

The previous prime is 2221020011087. The next prime is 2221020011101. The reversal of 2221020011100 is 11100201222.

2221020011100 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (12).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2221020011101) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 336514884 + ... + 336521483.

It is an arithmetic number, because the mean of its divisors is an integer number (97365927904).

Almost surely, 2^{2221020011100} is an apocalyptic number.

2221020011100 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2221020011100 is an abundant number, since it is smaller than the sum of its proper divisors (4789326797988).

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

2221020011100 is a wasteful number, since it uses less digits than its factorization.

2221020011100 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 673036395 (or 673036388 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 12.

Adding to 2221020011100 its reverse (11100201222), we get a palindrome (2232120212322).

The spelling of 2221020011100 in words is "two trillion, two hundred twenty-one billion, twenty million, eleven thousand, one hundred".