2121120022 has 16 divisors (see below), whose sum is σ = 3850100640. Its totient is φ = 855577728.

The previous prime is 2121119993. The next prime is 2121120031. The reversal of 2121120022 is 2200211212.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 2121119984 and 2121120011.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4455897 + ... + 4456372.

It is an arithmetic number, because the mean of its divisors is an integer number (240631290).

Almost surely, 2^2121120022 is an apocalyptic number.

2121120022 is a deficient number, since it is larger than the sum of its proper divisors (1728980618).

2121120022 is a wasteful number, since it uses less digits than its factorization.

2121120022 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8912295.

The product of its (nonzero) digits is 32, while the sum is 13.

The square root of 2121120022 is about 46055.6187885908. The cubic root of 2121120022 is about 1284.8578467709.

Adding to 2121120022 its reverse (2200211212), we get a palindrome (4321331234).

The spelling of 2121120022 in words is "two billion, one hundred twenty-one million, one hundred twenty thousand, twenty-two".