102220120231 has 4 divisors (see below), whose sum is σ = 102810988152. Its totient is φ = 101629252312.

The previous prime is 102220120201. The next prime is 102220120309. The reversal of 102220120231 is 132021022201.

It is a happy number.

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 102220120231 - 2¹⁹ = 102219595943 is a prime.

It is a super-2 number, since 2×102220120231² (a number of 23 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 (102220120201) 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, 295433701 + ... + 295434046.

It is an arithmetic number, because the mean of its divisors is an integer number (25702747038).

Almost surely, 2^102220120231 is an apocalyptic number.

102220120231 is a deficient number, since it is larger than the sum of its proper divisors (590867921).

102220120231 is an equidigital number, since it uses as much as digits as its factorization.

102220120231 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 590867920.

The product of its (nonzero) digits is 96, while the sum is 16.

Adding to 102220120231 its reverse (132021022201), we get a palindrome (234241142432).

The spelling of 102220120231 in words is "one hundred two billion, two hundred twenty million, one hundred twenty thousand, two hundred thirty-one".