30212142402 has 128 divisors (see below), whose sum is σ = 70448797440. Its totient is φ = 8557608960.

The previous prime is 30212142391. The next prime is 30212142469. The reversal of 30212142402 is 20424121203.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 17802418 + ... + 17804114.

It is an arithmetic number, because the mean of its divisors is an integer number (550381230).

Almost surely, 2^30212142402 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 30212142402, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (35224398720).

30212142402 is an abundant number, since it is smaller than the sum of its proper divisors (40236655038).

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

30212142402 is a wasteful number, since it uses less digits than its factorization.

30212142402 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2068.

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

Adding to 30212142402 its reverse (20424121203), we get a palindrome (50636263605).

The spelling of 30212142402 in words is "thirty billion, two hundred twelve million, one hundred forty-two thousand, four hundred two".