100202120220021 has 8 divisors (see below), whose sum is σ = 133615751721024. Its totient is φ = 66794951099520.

The previous prime is 100202120220001. The next prime is 100202120220043. The reversal of 100202120220021 is 120022021202001.

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

It is not a de Polignac number, because 100202120220021 - 2¹⁴ = 100202120203637 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (100202120220001) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1615558945 + ... + 1615620966.

It is an arithmetic number, because the mean of its divisors is an integer number (16701968965128).

Almost surely, 2^{100202120220021} is an apocalyptic number.

It is an amenable number.

100202120220021 is a deficient number, since it is larger than the sum of its proper divisors (33413631501003).

100202120220021 is a wasteful number, since it uses less digits than its factorization.

100202120220021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3231190251.

The product of its (nonzero) digits is 64, while the sum is 15.

Adding to 100202120220021 its reverse (120022021202001), we get a palindrome (220224141422022).

The spelling of 100202120220021 in words is "one hundred trillion, two hundred two billion, one hundred twenty million, two hundred twenty thousand, twenty-one".