22021121001100 has 36 divisors (see below), whose sum is σ = 51461665850224. Its totient is φ = 8130875446080.

The previous prime is 22021121001091. The next prime is 22021121001109. The reversal of 22021121001100 is 110012112022.

It is an interprime number because it is at equal distance from previous prime (22021121001091) and next prime (22021121001109).

It is a Harshad number since it is a multiple of its sum of digits (13).

It is not an unprimeable number, because it can be changed into a prime (22021121001109) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 8469660624 + ... + 8469663223.

Almost surely, 2^{22021121001100} is an apocalyptic number.

22021121001100 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

22021121001100 is an abundant number, since it is smaller than the sum of its proper divisors (29440544849124).

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

22021121001100 is a wasteful number, since it uses less digits than its factorization.

22021121001100 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16939323874 (or 16939323867 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 13.

Adding to 22021121001100 its reverse (110012112022), we get a palindrome (22131133113122).

The spelling of 22021121001100 in words is "twenty-two trillion, twenty-one billion, one hundred twenty-one million, one thousand, one hundred".