212351420 has 36 divisors (see below), whose sum is σ = 473725560. Its totient is φ = 79941888.

The previous prime is 212351413. The next prime is 212351441. The reversal of 212351420 is 24153212.

212351420 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (20).

It is a junction number, because it is equal to n+sod(n) for n = 212351392 and 212351401.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 12590 + ... + 24149.

Almost surely, 2^212351420 is an apocalyptic number.

212351420 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

212351420 is an abundant number, since it is smaller than the sum of its proper divisors (261374140).

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

212351420 is a wasteful number, since it uses less digits than its factorization.

212351420 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 36782 (or 36763 counting only the distinct ones).

The product of its (nonzero) digits is 480, while the sum is 20.

The square root of 212351420 is about 14572.2825940207. The cubic root of 212351420 is about 596.6024829614.

The spelling of 212351420 in words is "two hundred twelve million, three hundred fifty-one thousand, four hundred twenty".