102101232220 has 72 divisors (see below), whose sum is σ = 231535118304. Its totient is φ = 37596392064.

The previous prime is 102101232217. The next prime is 102101232227. The reversal of 102101232220 is 22232101201.

It is a happy number.

It is a super-2 number, since 2×102101232220² (a number of 23 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 102101232194 and 102101232203.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (102101232227) 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, 137417169 + ... + 137417911.

It is an arithmetic number, because the mean of its divisors is an integer number (3215765532).

Almost surely, 2^102101232220 is an apocalyptic number.

102101232220 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

102101232220 is an abundant number, since it is smaller than the sum of its proper divisors (129433886084).

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

102101232220 is an equidigital number, since it uses as much as digits as its factorization.

102101232220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2219 (or 1490 counting only the distinct ones).

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

Adding to 102101232220 its reverse (22232101201), we get a palindrome (124333333421).

The spelling of 102101232220 in words is "one hundred two billion, one hundred one million, two hundred thirty-two thousand, two hundred twenty".