22131311012101 has 4 divisors (see below), whose sum is σ = 22142666227500. Its totient is φ = 22119955796704.

The previous prime is 22131311012099. The next prime is 22131311012123. The reversal of 22131311012101 is 10121011313122.

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

It can be written as a sum of positive squares in 2 ways, for example, as 13847880183076 + 8283430829025 = 3721274^2 + 2878095^2 .

It is a cyclic number.

It is not a de Polignac number, because 22131311012101 - 2¹ = 22131311012099 is a prime.

It is a super-2 number, since 2×22131311012101² (a number of 27 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22131311012171) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5677604776 + ... + 5677608673.

It is an arithmetic number, because the mean of its divisors is an integer number (5535666556875).

Almost surely, 2^{22131311012101} is an apocalyptic number.

It is an amenable number.

22131311012101 is a deficient number, since it is larger than the sum of its proper divisors (11355215399).

22131311012101 is a wasteful number, since it uses less digits than its factorization.

22131311012101 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11355215398.

The product of its (nonzero) digits is 72, while the sum is 19.

Adding to 22131311012101 its reverse (10121011313122), we get a palindrome (32252322325223).

The spelling of 22131311012101 in words is "twenty-two trillion, one hundred thirty-one billion, three hundred eleven million, twelve thousand, one hundred one".