100220201200021 has 4 divisors (see below), whose sum is σ = 114537372800032. Its totient is φ = 85903029600012.

The previous prime is 100220201199983. The next prime is 100220201200181. The reversal of 100220201200021 is 120002102022001.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 100220201200021 - 2⁴³ = 91424108177813 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 100220201199974 and 100220201200010.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (100220201203021) 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, 7158585799995 + ... + 7158585800008.

It is an arithmetic number, because the mean of its divisors is an integer number (28634343200008).

Almost surely, 2^{100220201200021} is an apocalyptic number.

It is an amenable number.

100220201200021 is a deficient number, since it is larger than the sum of its proper divisors (14317171600011).

100220201200021 is an equidigital number, since it uses as much as digits as its factorization.

100220201200021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14317171600010.

The product of its (nonzero) digits is 32, while the sum is 13.

Adding to 100220201200021 its reverse (120002102022001), we get a palindrome (220222303222022).

The spelling of 100220201200021 in words is "one hundred trillion, two hundred twenty billion, two hundred one million, two hundred thousand, twenty-one".