2121120122 has 32 divisors (see below), whose sum is σ = 3639181824. Its totient is φ = 917809200.

The previous prime is 2121120061. The next prime is 2121120137. The reversal of 2121120122 is 2210211212.

It is a junction number, because it is equal to n+sod(n) for n = 2121120097 and 2121120106.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 96833 + ... + 116699.

It is an arithmetic number, because the mean of its divisors is an integer number (113724432).

Almost surely, 2^2121120122 is an apocalyptic number.

2121120122 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

2121120122 is a deficient number, since it is larger than the sum of its proper divisors (1518061702).

2121120122 is a wasteful number, since it uses less digits than its factorization.

2121120122 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20114.

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

The square root of 2121120122 is about 46055.6198742347. The cubic root of 2121120122 is about 1284.8578669624.

Adding to 2121120122 its reverse (2210211212), we get a palindrome (4331331334).

The spelling of 2121120122 in words is "two billion, one hundred twenty-one million, one hundred twenty thousand, one hundred twenty-two".