212203022130 has 128 divisors (see below), whose sum is σ = 619305523200. Its totient is φ = 51277521600.

The previous prime is 212203022063. The next prime is 212203022167. The reversal of 212203022130 is 31220302212.

212203022130 is a `hidden beast` number, since 212 + 20 + 302 + 2 + 130 = 666.

It is a super-2 number, since 2×212203022130² (a number of 23 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (18).

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, 808801 + ... + 1038539.

It is an arithmetic number, because the mean of its divisors is an integer number (4838324400).

Almost surely, 2^212203022130 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 212203022130, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (309652761600).

212203022130 is an abundant number, since it is smaller than the sum of its proper divisors (407102501070).

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

212203022130 is a wasteful number, since it uses less digits than its factorization.

212203022130 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 230077 (or 230071 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 18.

Adding to 212203022130 its reverse (31220302212), we get a palindrome (243423324342).

The spelling of 212203022130 in words is "two hundred twelve billion, two hundred three million, twenty-two thousand, one hundred thirty".