212070220 has 12 divisors (see below), whose sum is σ = 445347504. Its totient is φ = 84828080.

The previous prime is 212070203. The next prime is 212070241. The reversal of 212070220 is 22070212.

It is a junction number, because it is equal to n+sod(n) for n = 212070194 and 212070203.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5301736 + ... + 5301775.

It is an arithmetic number, because the mean of its divisors is an integer number (37112292).

Almost surely, 2^212070220 is an apocalyptic number.

212070220 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

212070220 is an abundant number, since it is smaller than the sum of its proper divisors (233277284).

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

212070220 is a wasteful number, since it uses less digits than its factorization.

212070220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10603520 (or 10603518 counting only the distinct ones).

The product of its (nonzero) digits is 112, while the sum is 16.

The square root of 212070220 is about 14562.6309436173. The cubic root of 212070220 is about 596.3390223181.

The spelling of 212070220 in words is "two hundred twelve million, seventy thousand, two hundred twenty".