30402112222 has 4 divisors (see below), whose sum is σ = 45603168336. Its totient is φ = 15201056110.

The previous prime is 30402112201. The next prime is 30402112229. The reversal of 30402112222 is 22221120403.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 22221120403 = 1237 ⋅17963719.

It is a self number, because there is not a number n which added to its sum of digits gives 30402112222.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30402112229) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 7600528054 + ... + 7600528057.

It is an arithmetic number, because the mean of its divisors is an integer number (11400792084).

Almost surely, 2^30402112222 is an apocalyptic number.

30402112222 is a deficient number, since it is larger than the sum of its proper divisors (15201056114).

30402112222 is a wasteful number, since it uses less digits than its factorization.

30402112222 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15201056113.

The product of its (nonzero) digits is 384, while the sum is 19.

Adding to 30402112222 its reverse (22221120403), we get a palindrome (52623232625).

The spelling of 30402112222 in words is "thirty billion, four hundred two million, one hundred twelve thousand, two hundred twenty-two".