2210000012121 has 64 divisors (see below), whose sum is σ = 3438735759360. Its totient is φ = 1247632450560.

The previous prime is 2210000012113. The next prime is 2210000012131. The reversal of 2210000012121 is 1212100000122.

It is not a de Polignac number, because 2210000012121 - 2³ = 2210000012113 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 2210000012097 and 2210000012106.

It is not an unprimeable number, because it can be changed into a prime (2210000012111) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 55442220 + ... + 55482066.

It is an arithmetic number, because the mean of its divisors is an integer number (53730246240).

Almost surely, 2^{2210000012121} is an apocalyptic number.

It is an amenable number.

2210000012121 is a deficient number, since it is larger than the sum of its proper divisors (1228735747239).

2210000012121 is a wasteful number, since it uses less digits than its factorization.

2210000012121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 40894.

The product of its (nonzero) digits is 16, while the sum is 12.

Adding to 2210000012121 its reverse (1212100000122), we get a palindrome (3422100012243).

The spelling of 2210000012121 in words is "two trillion, two hundred ten billion, twelve thousand, one hundred twenty-one".