2222521402 has 8 divisors (see below), whose sum is σ = 3423884436. Its totient is φ = 1081226592.

The previous prime is 2222521391. The next prime is 2222521421. The reversal of 2222521402 is 2041252222.

2222521402 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 1923611881 + 298909521 = 43859^2 + 17289^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 15016963 + ... + 15017110.

Almost surely, 2^2222521402 is an apocalyptic number.

2222521402 is a deficient number, since it is larger than the sum of its proper divisors (1201363034).

2222521402 is a wasteful number, since it uses less digits than its factorization.

2222521402 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 30034112.

The product of its (nonzero) digits is 1280, while the sum is 22.

The square root of 2222521402 is about 47143.6252530499. The cubic root of 2222521402 is about 1305.0144402233.

Adding to 2222521402 its reverse (2041252222), we get a palindrome (4263773624).

The spelling of 2222521402 in words is "two billion, two hundred twenty-two million, five hundred twenty-one thousand, four hundred two".