2121110122210 has 16 divisors (see below), whose sum is σ = 3818072616696. Its totient is φ = 848427516288.

The previous prime is 2121110122189. The next prime is 2121110122213. The reversal of 2121110122210 is 122210111212.

It can be written as a sum of positive squares in 4 ways, for example, as 1808301462361 + 312808659849 = 1344731^2 + 559293^2 .

It is a super-2 number, since 2×2121110122210² (a number of 25 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (2121110122213) 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, 1520859 + ... + 2560318.

Almost surely, 2^{2121110122210} is an apocalyptic number.

2121110122210 is a deficient number, since it is larger than the sum of its proper divisors (1696962494486).

2121110122210 is a wasteful number, since it uses less digits than its factorization.

2121110122210 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4133157.

The product of its (nonzero) digits is 32, while the sum is 16.

Adding to 2121110122210 its reverse (122210111212), we get a palindrome (2243320233422).

The spelling of 2121110122210 in words is "two trillion, one hundred twenty-one billion, one hundred ten million, one hundred twenty-two thousand, two hundred ten".