22122021011 has 16 divisors (see below), whose sum is σ = 23083895808. Its totient is φ = 21176076000.

The previous prime is 22122020993. The next prime is 22122021013. The reversal of 22122021011 is 11012022122.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-22122021011 is a prime.

It is a super-2 number, since 2×22122021011² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (22122021013) 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, 4014320 + ... + 4019826.

It is an arithmetic number, because the mean of its divisors is an integer number (1442743488).

Almost surely, 2^22122021011 is an apocalyptic number.

22122021011 is a deficient number, since it is larger than the sum of its proper divisors (961874797).

22122021011 is a wasteful number, since it uses less digits than its factorization.

22122021011 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6922.

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

Adding to 22122021011 its reverse (11012022122), we get a palindrome (33134043133).

The spelling of 22122021011 in words is "twenty-two billion, one hundred twenty-two million, twenty-one thousand, eleven".