202230121340 has 96 divisors (see below), whose sum is σ = 480184649280. Its totient is φ = 71018551296.

The previous prime is 202230121339. The next prime is 202230121363. The reversal of 202230121340 is 43121032202.

It is a super-2 number, since 2×202230121340² (a number of 23 digits) contains 22 as substring.

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, 305024 + ... + 705336.

It is an arithmetic number, because the mean of its divisors is an integer number (5001923430).

Almost surely, 2^202230121340 is an apocalyptic number.

202230121340 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 202230121340, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (240092324640).

202230121340 is an abundant number, since it is smaller than the sum of its proper divisors (277954527940).

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

202230121340 is a wasteful number, since it uses less digits than its factorization.

202230121340 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 400431 (or 400429 counting only the distinct ones).

The product of its (nonzero) digits is 576, while the sum is 20.

Adding to 202230121340 its reverse (43121032202), we get a palindrome (245351153542).

The spelling of 202230121340 in words is "two hundred two billion, two hundred thirty million, one hundred twenty-one thousand, three hundred forty".