102100122220120 has 64 divisors (see below), whose sum is σ = 248413814340480. Its totient is φ = 37619869802496.

The previous prime is 102100122219971. The next prime is 102100122220153. The reversal of 102100122220120 is 21022221001201.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 102100122220094 and 102100122220103.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1597279089 + ... + 1597343008.

It is an arithmetic number, because the mean of its divisors is an integer number (3881465849070).

Almost surely, 2^{102100122220120} is an apocalyptic number.

102100122220120 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

102100122220120 is an abundant number, since it is smaller than the sum of its proper divisors (146313692120360).

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

102100122220120 is a wasteful number, since it uses less digits than its factorization.

102100122220120 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3194622172 (or 3194622168 counting only the distinct ones).

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

Adding to 102100122220120 its reverse (21022221001201), we get a palindrome (123122343221321).

The spelling of 102100122220120 in words is "one hundred two trillion, one hundred billion, one hundred twenty-two million, two hundred twenty thousand, one hundred twenty".