221212300120131 has 8 divisors (see below), whose sum is σ = 301809029621440. Its totient is φ = 144045218682792.

The previous prime is 221212300120127. The next prime is 221212300120177. The reversal of 221212300120131 is 131021003212122.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 221212300120131 - 2² = 221212300120127 is a prime.

It is a super-2 number, since 2×221212300120131² (a number of 29 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 221212300120098 and 221212300120107.

It is not an unprimeable number, because it can be changed into a prime (221212300520131) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 857412015841 + ... + 857412016098.

It is an arithmetic number, because the mean of its divisors is an integer number (37726128702680).

Almost surely, 2^{221212300120131} is an apocalyptic number.

221212300120131 is a deficient number, since it is larger than the sum of its proper divisors (80596729501309).

221212300120131 is a wasteful number, since it uses less digits than its factorization.

221212300120131 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1714824031985.

The product of its (nonzero) digits is 288, while the sum is 21.

Adding to 221212300120131 its reverse (131021003212122), we get a palindrome (352233303332253).

The spelling of 221212300120131 in words is "two hundred twenty-one trillion, two hundred twelve billion, three hundred million, one hundred twenty thousand, one hundred thirty-one".