2100022222021 has 8 divisors (see below), whose sum is σ = 2103652634400. Its totient is φ = 2096392578000.

The previous prime is 2100022222009. The next prime is 2100022222037. The reversal of 2100022222021 is 1202222200012.

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 2100022222021 - 2⁷ = 2100022221893 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 2100022221986 and 2100022222004.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2100022222321) 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, 5420271 + ... + 5794771.

It is an arithmetic number, because the mean of its divisors is an integer number (262956579300).

Almost surely, 2^{2100022222021} is an apocalyptic number.

It is an amenable number.

2100022222021 is a deficient number, since it is larger than the sum of its proper divisors (3630412379).

2100022222021 is an equidigital number, since it uses as much as digits as its factorization.

2100022222021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 384179.

The product of its (nonzero) digits is 128, while the sum is 16.

Adding to 2100022222021 its reverse (1202222200012), we get a palindrome (3302244422033).

The spelling of 2100022222021 in words is "two trillion, one hundred billion, twenty-two million, two hundred twenty-two thousand, twenty-one".