2121442022 has 16 divisors (see below), whose sum is σ = 3637366560. Its totient is φ = 909037248.

The previous prime is 2121442021. The next prime is 2121442033. The reversal of 2121442022 is 2202441212.

It is a junction number, because it is equal to n+sod(n) for n = 2121441985 and 2121442003.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2121442021) 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, 126938 + ... + 142674.

It is an arithmetic number, because the mean of its divisors is an integer number (227335410).

Almost surely, 2^2121442022 is an apocalyptic number.

2121442022 is a deficient number, since it is larger than the sum of its proper divisors (1515924538).

2121442022 is a wasteful number, since it uses less digits than its factorization.

2121442022 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 25375.

The product of its (nonzero) digits is 512, while the sum is 20.

The square root of 2121442022 is about 46059.1144291768. The cubic root of 2121442022 is about 1284.9228601111.

Adding to 2121442022 its reverse (2202441212), we get a palindrome (4323883234).

It can be divided in two parts, 21214 and 42022, that added together give a palindrome (63236).

The spelling of 2121442022 in words is "two billion, one hundred twenty-one million, four hundred forty-two thousand, twenty-two".