22121101011 has 16 divisors (see below), whose sum is σ = 29648670624. Its totient is φ = 14670618624.

The previous prime is 22121101007. The next prime is 22121101019. The reversal of 22121101011 is 11010112122.

It is not a de Polignac number, because 22121101011 - 2² = 22121101007 is a prime.

It is not an unprimeable number, because it can be changed into a prime (22121101019) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 577425 + ... + 614541.

It is an arithmetic number, because the mean of its divisors is an integer number (1853041914).

Almost surely, 2^22121101011 is an apocalyptic number.

22121101011 is a deficient number, since it is larger than the sum of its proper divisors (7527569613).

22121101011 is a wasteful number, since it uses less digits than its factorization.

22121101011 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 38150.

The product of its (nonzero) digits is 8, while the sum is 12.

Adding to 22121101011 its reverse (11010112122), we get a palindrome (33131213133).

The spelling of 22121101011 in words is "twenty-two billion, one hundred twenty-one million, one hundred one thousand, eleven".