2122010121 has 96 divisors (see below), whose sum is σ = 3693731328. Its totient is φ = 1071221760.

The previous prime is 2122010119. The next prime is 2122010123. The reversal of 2122010121 is 1210102212.

It is an interprime number because it is at equal distance from previous prime (2122010119) and next prime (2122010123).

It is not a de Polignac number, because 2122010121 - 2¹ = 2122010119 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 2122010097 and 2122010106.

It is not an unprimeable number, because it can be changed into a prime (2122010123) by changing a digit.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 13018386 + ... + 13018548.

It is an arithmetic number, because the mean of its divisors is an integer number (38476368).

Almost surely, 2^2122010121 is an apocalyptic number.

2122010121 is a gapful number since it is divisible by the number (21) formed by its first and last digit.

It is an amenable number.

2122010121 is a deficient number, since it is larger than the sum of its proper divisors (1571721207).

2122010121 is a wasteful number, since it uses less digits than its factorization.

2122010121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 371 (or 364 counting only the distinct ones).

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

The square root of 2122010121 is about 46065.2810802235. The cubic root of 2122010121 is about 1285.0375459766.

Adding to 2122010121 its reverse (1210102212), we get a palindrome (3332112333).

The spelling of 2122010121 in words is "two billion, one hundred twenty-two million, ten thousand, one hundred twenty-one".