102022121028 has 48 divisors (see below), whose sum is σ = 242169480000. Its totient is φ = 33419503488.

The previous prime is 102022121021. The next prime is 102022121059. The reversal of 102022121028 is 820121220201.

It is a junction number, because it is equal to n+sod(n) for n = 102022120995 and 102022121013.

It is not an unprimeable number, because it can be changed into a prime (102022121021) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2177998 + ... + 2224346.

It is an arithmetic number, because the mean of its divisors is an integer number (5045197500).

Almost surely, 2^102022121028 is an apocalyptic number.

It is an amenable number.

102022121028 is an abundant number, since it is smaller than the sum of its proper divisors (140147358972).

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

102022121028 is a wasteful number, since it uses less digits than its factorization.

102022121028 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 49524 (or 49522 counting only the distinct ones).

The product of its (nonzero) digits is 256, while the sum is 21.

Adding to 102022121028 its reverse (820121220201), we get a palindrome (922143341229).

The spelling of 102022121028 in words is "one hundred two billion, twenty-two million, one hundred twenty-one thousand, twenty-eight".