102120011022220 has 24 divisors (see below), whose sum is σ = 214453106532000. Its totient is φ = 40847798049792.

The previous prime is 102120011022217. The next prime is 102120011022299. The reversal of 102120011022220 is 22220110021201.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 102120011022194 and 102120011022203.

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, 8807920 + ... + 16787479.

It is an arithmetic number, because the mean of its divisors is an integer number (8935546105500).

Almost surely, 2^{102120011022220} is an apocalyptic number.

102120011022220 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

102120011022220 is an abundant number, since it is smaller than the sum of its proper divisors (112333095509780).

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

102120011022220 is a wasteful number, since it uses less digits than its factorization.

102120011022220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 25794897 (or 25794895 counting only the distinct ones).

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

Adding to 102120011022220 its reverse (22220110021201), we get a palindrome (124340121043421).

The spelling of 102120011022220 in words is "one hundred two trillion, one hundred twenty billion, eleven million, twenty-two thousand, two hundred twenty".