30012312222100 has 72 divisors (see below), whose sum is σ = 70138072547928. Its totient is φ = 11081215142400.

The previous prime is 30012312222091. The next prime is 30012312222103. The reversal of 30012312222100 is 122221321003.

It can be written as a sum of positive squares in 12 ways, for example, as 23388462890244 + 6623849331856 = 4836162^2 + 2573684^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30012312222103) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 62134722 + ... + 62615878.

It is an arithmetic number, because the mean of its divisors is an integer number (974139896499).

Almost surely, 2^{30012312222100} is an apocalyptic number.

It is an amenable number.

30012312222100 is an abundant number, since it is smaller than the sum of its proper divisors (40125760325828).

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

30012312222100 is a wasteful number, since it uses less digits than its factorization.

30012312222100 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 529165 (or 529158 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 19.

Adding to 30012312222100 its reverse (122221321003), we get a palindrome (30134533543103).

The spelling of 30012312222100 in words is "thirty trillion, twelve billion, three hundred twelve million, two hundred twenty-two thousand, one hundred".