102220102021122 has 48 divisors (see below), whose sum is σ = 230285750953440. Its totient is φ = 33983463935232.

The previous prime is 102220102021061. The next prime is 102220102021129. The reversal of 102220102021122 is 221120201022201.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a junction number, because it is equal to n+sod(n) for n = 102220102021095 and 102220102021104.

It is not an unprimeable number, because it can be changed into a prime (102220102021129) 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, 277295263 + ... + 277663650.

It is an arithmetic number, because the mean of its divisors is an integer number (4797619811530).

Almost surely, 2^{102220102021122} is an apocalyptic number.

102220102021122 is an abundant number, since it is smaller than the sum of its proper divisors (128065648932318).

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

102220102021122 is an equidigital number, since it uses as much as digits as its factorization.

102220102021122 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 554959309 (or 554959297 counting only the distinct ones).

The product of its (nonzero) digits is 128, while the sum is 18.

Adding to 102220102021122 its reverse (221120201022201), we get a palindrome (323340303043323).

The spelling of 102220102021122 in words is "one hundred two trillion, two hundred twenty billion, one hundred two million, twenty-one thousand, one hundred twenty-two".