202242102140 has 96 divisors (see below), whose sum is σ = 459259422720. Its totient is φ = 74367611136.

The previous prime is 202242102137. The next prime is 202242102169. The reversal of 202242102140 is 41201242202.

It is a Harshad number since it is a multiple of its sum of digits (20).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 74379701 + ... + 74382419.

It is an arithmetic number, because the mean of its divisors is an integer number (4783952320).

Almost surely, 2^202242102140 is an apocalyptic number.

202242102140 is a gapful number since it is divisible by the number (20) 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 202242102140, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (229629711360).

202242102140 is an abundant number, since it is smaller than the sum of its proper divisors (257017320580).

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

202242102140 is a wasteful number, since it uses less digits than its factorization.

202242102140 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3811 (or 3809 counting only the distinct ones).

The product of its (nonzero) digits is 512, while the sum is 20.

Adding to 202242102140 its reverse (41201242202), we get a palindrome (243443344342).

The spelling of 202242102140 in words is "two hundred two billion, two hundred forty-two million, one hundred two thousand, one hundred forty".