102220020000 has 720 divisors, whose sum is σ = 428691174912. Its totient is φ = 22602240000.

The previous prime is 102220019999. The next prime is 102220020079. The reversal of 102220020000 is 20022201.

It is a tau number, because it is divible by the number of its divisors (720).

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

It is a super Niven number, because it is divisible the sum of any subset of its (nonzero) digits.

It is an unprimeable number.

It is a polite number, since it can be written in 119 ways as a sum of consecutive naturals, for example, 39058692 + ... + 39061308.

Almost surely, 2^102220020000 is an apocalyptic number.

102220020000 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 102220020000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (214345587456).

102220020000 is an abundant number, since it is smaller than the sum of its proper divisors (326471154912).

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

102220020000 is a wasteful number, since it uses less digits than its factorization.

102220020000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2691 (or 2665 counting only the distinct ones).

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

Adding to 102220020000 its reverse (20022201), we get a palindrome (102240042201).

The spelling of 102220020000 in words is "one hundred two billion, two hundred twenty million, twenty thousand".