221320030210131 has 16 divisors (see below), whose sum is σ = 295324310439200. Its totient is φ = 147431247925248.

The previous prime is 221320030210127. The next prime is 221320030210183. The reversal of 221320030210131 is 131012030023122.

It is not a de Polignac number, because 221320030210131 - 2² = 221320030210127 is a prime.

It is a super-2 number, since 2×221320030210131² (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 = 221320030210098 and 221320030210107.

It is not an unprimeable number, because it can be changed into a prime (221320030212131) 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 15 ways as a sum of consecutive naturals, for example, 26321955 + ... + 33696963.

It is an arithmetic number, because the mean of its divisors is an integer number (18457769402450).

Almost surely, 2^{221320030210131} is an apocalyptic number.

221320030210131 is a deficient number, since it is larger than the sum of its proper divisors (74004280229069).

221320030210131 is a wasteful number, since it uses less digits than its factorization.

221320030210131 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7382838.

The product of its (nonzero) digits is 432, while the sum is 21.

Adding to 221320030210131 its reverse (131012030023122), we get a palindrome (352332060233253).

The spelling of 221320030210131 in words is "two hundred twenty-one trillion, three hundred twenty billion, thirty million, two hundred ten thousand, one hundred thirty-one".