102020022 has 24 divisors (see below), whose sum is σ = 238047264. Its totient is φ = 31390704.

The previous prime is 102020021. The next prime is 102020053. The reversal of 102020022 is 220020201.

It is a Harshad number since it is a multiple of its sum of digits (9).

It is a junction number, because it is equal to n+sod(n) for n = 102019986 and 102020013.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (102020021) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 217758 + ... + 218225.

It is an arithmetic number, because the mean of its divisors is an integer number (9918636).

Almost surely, 2^102020022 is an apocalyptic number.

102020022 is an abundant number, since it is smaller than the sum of its proper divisors (136027242).

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

102020022 is a wasteful number, since it uses less digits than its factorization.

102020022 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 436004 (or 436001 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 9.

The square root of 102020022 is about 10100.4961264286. The cubic root of 102020022 is about 467.2634425236.

Adding to 102020022 its reverse (220020201), we get a palindrome (322040223).

The spelling of 102020022 in words is "one hundred two million, twenty thousand, twenty-two".