2222021252 has 36 divisors (see below), whose sum is σ = 4278205680. Its totient is φ = 1009058160.

The previous prime is 2222021251. The next prime is 2222021257. The reversal of 2222021252 is 2521202222.

It is not an unprimeable number, because it can be changed into a prime (2222021251) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 902399 + ... + 904857.

Almost surely, 2^2222021252 is an apocalyptic number.

2222021252 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

It is an amenable number.

2222021252 is a deficient number, since it is larger than the sum of its proper divisors (2056184428).

2222021252 is a wasteful number, since it uses less digits than its factorization.

2222021252 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4352 (or 4339 counting only the distinct ones).

The product of its (nonzero) digits is 640, while the sum is 20.

The square root of 2222021252 is about 47138.3204198028. The cubic root of 2222021252 is about 1304.9165406127.

Adding to 2222021252 its reverse (2521202222), we get a palindrome (4743223474).

The spelling of 2222021252 in words is "two billion, two hundred twenty-two million, twenty-one thousand, two hundred fifty-two".