22122211222011 has 16 divisors (see below), whose sum is σ = 29518656002048. Its totient is φ = 14736955212000.

The previous prime is 22122211221997. The next prime is 22122211222019. The reversal of 22122211222011 is 11022211222122.

It is not a de Polignac number, because 22122211222011 - 2²² = 22122207027707 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (22122211222019) 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, 57827061 + ... + 58208361.

It is an arithmetic number, because the mean of its divisors is an integer number (1844916000128).

Almost surely, 2^{22122211222011} is an apocalyptic number.

22122211222011 is a deficient number, since it is larger than the sum of its proper divisors (7396444780037).

22122211222011 is a wasteful number, since it uses less digits than its factorization.

22122211222011 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 395922.

The product of its (nonzero) digits is 256, while the sum is 21.

Adding to 22122211222011 its reverse (11022211222122), we get a palindrome (33144422444133).

The spelling of 22122211222011 in words is "twenty-two trillion, one hundred twenty-two billion, two hundred eleven million, two hundred twenty-two thousand, eleven".