102222220101220 has 96 divisors (see below), whose sum is σ = 233944556590080. Its totient is φ = 37373629962240.

The previous prime is 102222220101109. The next prime is 102222220101223. The reversal of 102222220101220 is 22101022222201.

It is not an unprimeable number, because it can be changed into a prime (102222220101223) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 29556144 + ... + 32833063.

It is an arithmetic number, because the mean of its divisors is an integer number (2436922464480).

Almost surely, 2^{102222220101220} is an apocalyptic number.

102222220101220 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

102222220101220 is an abundant number, since it is smaller than the sum of its proper divisors (131722336488860).

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

102222220101220 is a wasteful number, since it uses less digits than its factorization.

102222220101220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 62389373 (or 62389371 counting only the distinct ones).

The product of its (nonzero) digits is 256, while the sum is 19.

Adding to 102222220101220 its reverse (22101022222201), we get a palindrome (124323242323421).

The spelling of 102222220101220 in words is "one hundred two trillion, two hundred twenty-two billion, two hundred twenty million, one hundred one thousand, two hundred twenty".