22011002120021 has 16 divisors (see below), whose sum is σ = 22660757323776. Its totient is φ = 21368873148336.

The previous prime is 22011002119973. The next prime is 22011002120099. The reversal of 22011002120021 is 12002120011022.

It is a cyclic number.

It is not a de Polignac number, because 22011002120021 - 2¹⁴ = 22011002103637 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 22011002119978 and 22011002120005.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22011002120521) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 30364220 + ... + 31080666.

It is an arithmetic number, because the mean of its divisors is an integer number (1416297332736).

Almost surely, 2^{22011002120021} is an apocalyptic number.

It is an amenable number.

22011002120021 is a deficient number, since it is larger than the sum of its proper divisors (649755203755).

22011002120021 is a wasteful number, since it uses less digits than its factorization.

22011002120021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 721768.

The product of its (nonzero) digits is 32, while the sum is 14.

Adding to 22011002120021 its reverse (12002120011022), we get a palindrome (34013122131043).

The spelling of 22011002120021 in words is "twenty-two trillion, eleven billion, two million, one hundred twenty thousand, twenty-one".