102021222331 has 4 divisors (see below), whose sum is σ = 116595682672. Its totient is φ = 87446761992.

The previous prime is 102021222311. The next prime is 102021222389. The reversal of 102021222331 is 133222120201.

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 102021222331 - 2¹¹ = 102021220283 is a prime.

It is a super-2 number, since 2×102021222331² (a number of 23 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 102021222299 and 102021222308.

It is not an unprimeable number, because it can be changed into a prime (102021222311) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 7287230160 + ... + 7287230173.

It is an arithmetic number, because the mean of its divisors is an integer number (29148920668).

Almost surely, 2^102021222331 is an apocalyptic number.

102021222331 is a deficient number, since it is larger than the sum of its proper divisors (14574460341).

102021222331 is an equidigital number, since it uses as much as digits as its factorization.

102021222331 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14574460340.

The product of its (nonzero) digits is 288, while the sum is 19.

Adding to 102021222331 its reverse (133222120201), we get a palindrome (235243342532).

The spelling of 102021222331 in words is "one hundred two billion, twenty-one million, two hundred twenty-two thousand, three hundred thirty-one".