102021221022 has 16 divisors (see below), whose sum is σ = 233191362432. Its totient is φ = 29148920280.

The previous prime is 102021221021. The next prime is 102021221023. The reversal of 102021221022 is 220122120201.

It is an interprime number because it is at equal distance from previous prime (102021221021) and next prime (102021221023).

It is a junction number, because it is equal to n+sod(n) for n = 102021220992 and 102021221010.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (102021221021) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1214538304 + ... + 1214538387.

It is an arithmetic number, because the mean of its divisors is an integer number (14574460152).

Almost surely, 2^102021221022 is an apocalyptic number.

102021221022 is an abundant number, since it is smaller than the sum of its proper divisors (131170141410).

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

102021221022 is a wasteful number, since it uses less digits than its factorization.

102021221022 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2429076703.

The product of its (nonzero) digits is 64, while the sum is 15.

Adding to 102021221022 its reverse (220122120201), we get a palindrome (322143341223).

The spelling of 102021221022 in words is "one hundred two billion, twenty-one million, two hundred twenty-one thousand, twenty-two".