102220722604 has 72 divisors (see below), whose sum is σ = 244472005008. Its totient is φ = 36762687360.

The previous prime is 102220722599. The next prime is 102220722629. The reversal of 102220722604 is 406227022201.

It is a super-2 number, since 2×102220722604² (a number of 23 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (28).

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1795519 + ... + 1851574.

It is an arithmetic number, because the mean of its divisors is an integer number (3395444514).

Almost surely, 2^102220722604 is an apocalyptic number.

102220722604 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

It is an amenable number.

102220722604 is an abundant number, since it is smaller than the sum of its proper divisors (142251282404).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

102220722604 is a wasteful number, since it uses less digits than its factorization.

102220722604 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3647135 (or 3647126 counting only the distinct ones).

The product of its (nonzero) digits is 5376, while the sum is 28.

Adding to 102220722604 its reverse (406227022201), we get a palindrome (508447744805).

The spelling of 102220722604 in words is "one hundred two billion, two hundred twenty million, seven hundred twenty-two thousand, six hundred four".