102142201220 has 24 divisors (see below), whose sum is σ = 216041784000. Its totient is φ = 40562944992.

The previous prime is 102142201219. The next prime is 102142201297. The reversal of 102142201220 is 22102241201.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 18368120 + ... + 18373679.

It is an arithmetic number, because the mean of its divisors is an integer number (9001741000).

Almost surely, 2^102142201220 is an apocalyptic number.

102142201220 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

102142201220 is an abundant number, since it is smaller than the sum of its proper divisors (113899582780).

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

102142201220 is a wasteful number, since it uses less digits than its factorization.

102142201220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 36741947 (or 36741945 counting only the distinct ones).

The product of its (nonzero) digits is 128, while the sum is 17.

Adding to 102142201220 its reverse (22102241201), we get a palindrome (124244442421).

The spelling of 102142201220 in words is "one hundred two billion, one hundred forty-two million, two hundred one thousand, two hundred twenty".