21022112210001 has 16 divisors (see below), whose sum is σ = 32033766641664. Its totient is φ = 12012608606544.

The previous prime is 21022112209981. The next prime is 21022112210041. The reversal of 21022112210001 is 10001221122012.

It is not a de Polignac number, because 21022112210001 - 2⁶ = 21022112209937 is a prime.

It is not an unprimeable number, because it can be changed into a prime (21022112210041) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 12068160 + ... + 13699806.

It is an arithmetic number, because the mean of its divisors is an integer number (2002110415104).

Almost surely, 2^{21022112210001} is an apocalyptic number.

21022112210001 is a gapful number since it is divisible by the number (21) formed by its first and last digit.

It is an amenable number.

21022112210001 is a deficient number, since it is larger than the sum of its proper divisors (11011654431663).

21022112210001 is a wasteful number, since it uses less digits than its factorization.

21022112210001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2245180.

The product of its (nonzero) digits is 32, while the sum is 15.

Adding to 21022112210001 its reverse (10001221122012), we get a palindrome (31023333332013).

The spelling of 21022112210001 in words is "twenty-one trillion, twenty-two billion, one hundred twelve million, two hundred ten thousand, one".