220021001102101 has 4 divisors (see below), whose sum is σ = 220990256613792. Its totient is φ = 219051745590412.

The previous prime is 220021001102093. The next prime is 220021001102107. The reversal of 220021001102101 is 101201100120022.

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 220021001102101 - 2³ = 220021001102093 is a prime.

It is a super-2 number, since 2×220021001102101² (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 (220021001102107) 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, 484627755505 + ... + 484627755958.

It is an arithmetic number, because the mean of its divisors is an integer number (55247564153448).

Almost surely, 2^{220021001102101} is an apocalyptic number.

It is an amenable number.

220021001102101 is a deficient number, since it is larger than the sum of its proper divisors (969255511691).

220021001102101 is an equidigital number, since it uses as much as digits as its factorization.

220021001102101 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 969255511690.

The product of its (nonzero) digits is 16, while the sum is 13.

Adding to 220021001102101 its reverse (101201100120022), we get a palindrome (321222101222123).

The spelling of 220021001102101 in words is "two hundred twenty trillion, twenty-one billion, one million, one hundred two thousand, one hundred one".