102120021022 has 24 divisors (see below), whose sum is σ = 160848039744. Its totient is φ = 48620884224.

The previous prime is 102120021013. The next prime is 102120021067. The reversal of 102120021022 is 220120021201.

It is a happy number.

102120021022 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a junction number, because it is equal to n+sod(n) for n = 102120020993 and 102120021011.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 19518 + ... + 452350.

It is an arithmetic number, because the mean of its divisors is an integer number (6702001656).

Almost surely, 2^102120021022 is an apocalyptic number.

102120021022 is a deficient number, since it is larger than the sum of its proper divisors (58728018722).

102120021022 is a wasteful number, since it uses less digits than its factorization.

102120021022 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 433104 (or 433081 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 13.

Adding to 102120021022 its reverse (220120021201), we get a palindrome (322240042223).

The spelling of 102120021022 in words is "one hundred two billion, one hundred twenty million, twenty-one thousand, twenty-two".