202132020421 has 8 divisors (see below), whose sum is σ = 204038201664. Its totient is φ = 200226156000.

The previous prime is 202132020361. The next prime is 202132020427. The reversal of 202132020421 is 124020231202.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 202132020421 - 2¹¹ = 202132018373 is a prime.

It is a super-2 number, since 2×202132020421² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (202132020427) 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, 1318456 + ... + 1463758.

It is an arithmetic number, because the mean of its divisors is an integer number (25504775208).

Almost surely, 2^202132020421 is an apocalyptic number.

It is an amenable number.

202132020421 is a deficient number, since it is larger than the sum of its proper divisors (1906181243).

202132020421 is a wasteful number, since it uses less digits than its factorization.

202132020421 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 158411.

The product of its (nonzero) digits is 384, while the sum is 19.

Adding to 202132020421 its reverse (124020231202), we get a palindrome (326152251623).

The spelling of 202132020421 in words is "two hundred two billion, one hundred thirty-two million, twenty thousand, four hundred twenty-one".