21122022020011 has 4 divisors (see below), whose sum is σ = 23042205840024. Its totient is φ = 19201838200000.

The previous prime is 21122022020009. The next prime is 21122022020041. The reversal of 21122022020011 is 11002022022112.

It is a happy number.

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 21122022020011 - 2¹ = 21122022020009 is a prime.

It is a super-2 number, since 2×21122022020011² (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 (21122022020041) 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, 960091909990 + ... + 960091910011.

It is an arithmetic number, because the mean of its divisors is an integer number (5760551460006).

Almost surely, 2^{21122022020011} is an apocalyptic number.

21122022020011 is a deficient number, since it is larger than the sum of its proper divisors (1920183820013).

21122022020011 is a wasteful number, since it uses less digits than its factorization.

21122022020011 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1920183820012.

The product of its (nonzero) digits is 64, while the sum is 16.

Adding to 21122022020011 its reverse (11002022022112), we get a palindrome (32124044042123).

The spelling of 21122022020011 in words is "twenty-one trillion, one hundred twenty-two billion, twenty-two million, twenty thousand, eleven".