102220211021020 has 24 divisors (see below), whose sum is σ = 214662993388704. Its totient is φ = 40887979599936.

The previous prime is 102220211020979. The next prime is 102220211021051. The reversal of 102220211021020 is 20120112022201.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 102220211020985 and 102220211021003.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1700454 + ... + 14399026.

It is an arithmetic number, because the mean of its divisors is an integer number (8944291391196).

Almost surely, 2^{102220211021020} is an apocalyptic number.

102220211021020 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

102220211021020 is an abundant number, since it is smaller than the sum of its proper divisors (112442782367684).

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

102220211021020 is a wasteful number, since it uses less digits than its factorization.

102220211021020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13101069 (or 13101067 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 16.

Adding to 102220211021020 its reverse (20120112022201), we get a palindrome (122340323043221).

The spelling of 102220211021020 in words is "one hundred two trillion, two hundred twenty billion, two hundred eleven million, twenty-one thousand, twenty".