203322210100021 has 8 divisors (see below), whose sum is σ = 203612345602560. Its totient is φ = 203032281324528.

The previous prime is 203322210100003. The next prime is 203322210100033. The reversal of 203322210100021 is 120001012223302.

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 203322210100021 - 2¹⁵ = 203322210067253 is a prime.

It is a super-2 number, since 2×203322210100021² (a number of 29 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 (203322210100081) 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, 49713246 + ... + 53647471.

It is an arithmetic number, because the mean of its divisors is an integer number (25451543200320).

Almost surely, 2^{203322210100021} is an apocalyptic number.

It is an amenable number.

203322210100021 is a deficient number, since it is larger than the sum of its proper divisors (290135502539).

203322210100021 is a wasteful number, since it uses less digits than its factorization.

203322210100021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 103363523.

The product of its (nonzero) digits is 288, while the sum is 19.

Adding to 203322210100021 its reverse (120001012223302), we get a palindrome (323323222323323).

The spelling of 203322210100021 in words is "two hundred three trillion, three hundred twenty-two billion, two hundred ten million, one hundred thousand, twenty-one".