100220303122021 has 12 divisors (see below), whose sum is σ = 103820981998500. Its totient is φ = 96740528960768.

The previous prime is 100220303122007. The next prime is 100220303122063. The reversal of 100220303122021 is 120221303022001.

It can be written as a sum of positive squares in 6 ways, for example, as 18148571292996 + 82071731829025 = 4260114^2 + 9059345^2 .

It is not a de Polignac number, because 100220303122021 - 2⁷ = 100220303121893 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 100220303122021.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (100220303122091) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 11310526 + ... + 18120943.

It is an arithmetic number, because the mean of its divisors is an integer number (8651748499875).

Almost surely, 2^{100220303122021} is an apocalyptic number.

It is an amenable number.

100220303122021 is a deficient number, since it is larger than the sum of its proper divisors (3600678876479).

100220303122021 is an equidigital number, since it uses as much as digits as its factorization.

100220303122021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 29435576 (or 29435547 counting only the distinct ones).

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

Adding to 100220303122021 its reverse (120221303022001), we get a palindrome (220441606144022).

The spelling of 100220303122021 in words is "one hundred trillion, two hundred twenty billion, three hundred three million, one hundred twenty-two thousand, twenty-one".