212130020030 has 16 divisors (see below), whose sum is σ = 384748802064. Its totient is φ = 84204282240.

The previous prime is 212130020029. The next prime is 212130020087. The reversal of 212130020030 is 30020031212.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 212130019987 and 212130020014.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 80964347 + ... + 80966966.

It is an arithmetic number, because the mean of its divisors is an integer number (24046800129).

Almost surely, 2^212130020030 is an apocalyptic number.

212130020030 is a deficient number, since it is larger than the sum of its proper divisors (172618782034).

212130020030 is a wasteful number, since it uses less digits than its factorization.

212130020030 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 161931451.

The product of its (nonzero) digits is 72, while the sum is 14.

Adding to 212130020030 its reverse (30020031212), we get a palindrome (242150051242).

The spelling of 212130020030 in words is "two hundred twelve billion, one hundred thirty million, twenty thousand, thirty".