212122213030 has 128 divisors (see below), whose sum is σ = 486516844800. Its totient is φ = 64767596544.

The previous prime is 212122213027. The next prime is 212122213109. The reversal of 212122213030 is 30312221212.

It is a junction number, because it is equal to n+sod(n) for n = 212122212989 and 212122213007.

It is a congruent number.

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, 47209464 + ... + 47213956.

It is an arithmetic number, because the mean of its divisors is an integer number (3800912850).

Almost surely, 2^212122213030 is an apocalyptic number.

212122213030 is an abundant number, since it is smaller than the sum of its proper divisors (274394631770).

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

212122213030 is a wasteful number, since it uses less digits than its factorization.

212122213030 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6338.

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

Adding to 212122213030 its reverse (30312221212), we get a palindrome (242434434242).

The spelling of 212122213030 in words is "two hundred twelve billion, one hundred twenty-two million, two hundred thirteen thousand, thirty".