2100022021121 has 8 divisors (see below), whose sum is σ = 2109664571040. Its totient is φ = 2090401462368.

The previous prime is 2100022021037. The next prime is 2100022021147. The reversal of 2100022021121 is 1211202200012.

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 2100022021121 - 2³⁴ = 2082842151937 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 2100022021096 and 2100022021105.

It is not an unprimeable number, because it can be changed into a prime (2100022081121) 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, 5306351 + ... + 5688356.

It is an arithmetic number, because the mean of its divisors is an integer number (263708071380).

Almost surely, 2^{2100022021121} is an apocalyptic number.

It is an amenable number.

2100022021121 is a deficient number, since it is larger than the sum of its proper divisors (9642549919).

2100022021121 is a wasteful number, since it uses less digits than its factorization.

2100022021121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10995583.

The product of its (nonzero) digits is 32, while the sum is 14.

Adding to 2100022021121 its reverse (1211202200012), we get a palindrome (3311224221133).

The spelling of 2100022021121 in words is "two trillion, one hundred billion, twenty-two million, twenty-one thousand, one hundred twenty-one".