21223332120131 has 4 divisors (see below), whose sum is σ = 21266911858032. Its totient is φ = 21179752382232.

The previous prime is 21223332120127. The next prime is 21223332120181. The reversal of 21223332120131 is 13102123332212.

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 21223332120131 - 2² = 21223332120127 is a prime.

It is a super-2 number, since 2×21223332120131² (a number of 27 digits) contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 21223332120131.

It is not an unprimeable number, because it can be changed into a prime (21223332120101) 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, 21789868220 + ... + 21789869193.

It is an arithmetic number, because the mean of its divisors is an integer number (5316727964508).

Almost surely, 2^{21223332120131} is an apocalyptic number.

21223332120131 is a deficient number, since it is larger than the sum of its proper divisors (43579737901).

21223332120131 is an equidigital number, since it uses as much as digits as its factorization.

21223332120131 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 43579737900.

The product of its (nonzero) digits is 2592, while the sum is 26.

Adding to 21223332120131 its reverse (13102123332212), we get a palindrome (34325455452343).

The spelling of 21223332120131 in words is "twenty-one trillion, two hundred twenty-three billion, three hundred thirty-two million, one hundred twenty thousand, one hundred thirty-one".