22021211000011 has 4 divisors (see below), whose sum is σ = 22039216897392. Its totient is φ = 22003205102632.

The previous prime is 22021210999981. The next prime is 22021211000057. The reversal of 22021211000011 is 11000011212022.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 22021211000011 - 2¹⁵ = 22021210967243 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 22021210999955 and 22021211000000.

It is not an unprimeable number, because it can be changed into a prime (22021211007011) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 9002946856 + ... + 9002949301.

It is an arithmetic number, because the mean of its divisors is an integer number (5509804224348).

Almost surely, 2^{22021211000011} is an apocalyptic number.

22021211000011 is a deficient number, since it is larger than the sum of its proper divisors (18005897381).

22021211000011 is a wasteful number, since it uses less digits than its factorization.

22021211000011 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18005897380.

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

Adding to 22021211000011 its reverse (11000011212022), we get a palindrome (33021222212033).

The spelling of 22021211000011 in words is "twenty-two trillion, twenty-one billion, two hundred eleven million, eleven", and thus it is an aban number.