102222231021 has 24 divisors (see below), whose sum is σ = 163137274560. Its totient is φ = 61350765696.

The previous prime is 102222230939. The next prime is 102222231031. The reversal of 102222231021 is 120132222201.

It is a de Polignac number, because none of the positive numbers 2^k-102222231021 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 102222230985 and 102222231003.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (102222231031) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 14520811 + ... + 14527848.

It is an arithmetic number, because the mean of its divisors is an integer number (6797386440).

Almost surely, 2^102222231021 is an apocalyptic number.

It is an amenable number.

102222231021 is a deficient number, since it is larger than the sum of its proper divisors (60915043539).

102222231021 is a wasteful number, since it uses less digits than its factorization.

102222231021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 29048705 (or 29048702 counting only the distinct ones).

The product of its (nonzero) digits is 192, while the sum is 18.

Adding to 102222231021 its reverse (120132222201), we get a palindrome (222354453222).

The spelling of 102222231021 in words is "one hundred two billion, two hundred twenty-two million, two hundred thirty-one thousand, twenty-one".