2122121122 has 16 divisors (see below), whose sum is σ = 3553320672. Its totient is φ = 942167520.

The previous prime is 2122121119. The next prime is 2122121123. The reversal of 2122121122 is 2211212212.

It is a happy number.

It is a nude number because it is divisible by every one of its digits.

It is a junction number, because it is equal to n+sod(n) for n = 2122121096 and 2122121105.

It is not an unprimeable number, because it can be changed into a prime (2122121123) 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, 1120683 + ... + 1122574.

It is an arithmetic number, because the mean of its divisors is an integer number (222082542).

Almost surely, 2^2122121122 is an apocalyptic number.

2122121122 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

2122121122 is a deficient number, since it is larger than the sum of its proper divisors (1431199550).

2122121122 is a wasteful number, since it uses less digits than its factorization.

2122121122 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2243313.

The product of its digits is 64, while the sum is 16.

The square root of 2122121122 is about 46066.4858872478. The cubic root of 2122121122 is about 1285.0599520849.

Adding to 2122121122 its reverse (2211212212), we get a palindrome (4333333334).

The spelling of 2122121122 in words is "two billion, one hundred twenty-two million, one hundred twenty-one thousand, one hundred twenty-two".