21122010120001 has 8 divisors (see below), whose sum is σ = 25188981012864. Its totient is φ = 17317424446080.

The previous prime is 21122010119981. The next prime is 21122010120019. The reversal of 21122010120001 is 10002101022112.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 21122010120001 - 2¹⁷ = 21122009988929 is a prime.

It is a super-2 number, since 2×21122010120001² (a number of 27 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (21122010120041) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 65596304560 + ... + 65596304881.

It is an arithmetic number, because the mean of its divisors is an integer number (3148622626608).

Almost surely, 2^{21122010120001} is an apocalyptic number.

It is an amenable number.

21122010120001 is a deficient number, since it is larger than the sum of its proper divisors (4066970892863).

21122010120001 is a wasteful number, since it uses less digits than its factorization.

21122010120001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 131192609471.

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

Adding to 21122010120001 its reverse (10002101022112), we get a palindrome (31124111142113).

The spelling of 21122010120001 in words is "twenty-one trillion, one hundred twenty-two billion, ten million, one hundred twenty thousand, one".