2222121342 has 32 divisors (see below), whose sum is σ = 5080787712. Its totient is φ = 634685184.

The previous prime is 2222121337. The next prime is 2222121353. The reversal of 2222121342 is 2431212222.

2222121342 is digitally balanced in base 2 and base 4, because in such bases it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is a congruent number.

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, 161518 + ... + 174734.

It is an arithmetic number, because the mean of its divisors is an integer number (158774616).

Almost surely, 2^2222121342 is an apocalyptic number.

2222121342 is an abundant number, since it is smaller than the sum of its proper divisors (2858666370).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

2222121342 is a wasteful number, since it uses less digits than its factorization.

2222121342 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17232.

The product of its digits is 768, while the sum is 21.

The square root of 2222121342 is about 47139.3820706212. The cubic root of 2222121342 is about 1304.9361334549.

Adding to 2222121342 its reverse (2431212222), we get a palindrome (4653333564).

The spelling of 2222121342 in words is "two billion, two hundred twenty-two million, one hundred twenty-one thousand, three hundred forty-two".