21200012202 has 8 divisors (see below), whose sum is σ = 42400024416. Its totient is φ = 7066670732.

The previous prime is 21200012201. The next prime is 21200012213. The reversal of 21200012202 is 20221000212.

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

21200012202 is an admirable number.

It is a super-3 number, since 3×21200012202³ (a number of 32 digits) contains 333 as substring.

It is not an unprimeable number, because it can be changed into a prime (21200012201) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1766667678 + ... + 1766667689.

It is an arithmetic number, because the mean of its divisors is an integer number (5300003052).

Almost surely, 2^21200012202 is an apocalyptic number.

21200012202 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

21200012202 is a wasteful number, since it uses less digits than its factorization.

21200012202 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3533335372.

The product of its (nonzero) digits is 32, while the sum is 12.

Adding to 21200012202 its reverse (20221000212), we get a palindrome (41421012414).

The spelling of 21200012202 in words is "twenty-one billion, two hundred million, twelve thousand, two hundred two".