212302120030 has 64 divisors (see below), whose sum is σ = 513088224768. Its totient is φ = 61081925760.

The previous prime is 212302119989. The next prime is 212302120033. The reversal of 212302120030 is 30021203212.

It is a junction number, because it is equal to n+sod(n) for n = 212302119986 and 212302120013.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (212302120033) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 10594492 + ... + 10614511.

It is an arithmetic number, because the mean of its divisors is an integer number (8017003512).

Almost surely, 2^212302120030 is an apocalyptic number.

212302120030 is an abundant number, since it is smaller than the sum of its proper divisors (300786104738).

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

212302120030 is a wasteful number, since it uses less digits than its factorization.

212302120030 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21209041.

The product of its (nonzero) digits is 144, while the sum is 16.

Adding to 212302120030 its reverse (30021203212), we get a palindrome (242323323242).

The spelling of 212302120030 in words is "two hundred twelve billion, three hundred two million, one hundred twenty thousand, thirty".