212020254 has 40 divisors (see below), whose sum is σ = 476014968. Its totient is φ = 70534800.

The previous prime is 212020223. The next prime is 212020261. The reversal of 212020254 is 452020212.

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

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 112629 + ... + 114495.

Almost surely, 2^212020254 is an apocalyptic number.

212020254 is an abundant number, since it is smaller than the sum of its proper divisors (263994714).

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

212020254 is a wasteful number, since it uses less digits than its factorization.

212020254 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2582 (or 2573 counting only the distinct ones).

The product of its (nonzero) digits is 320, while the sum is 18.

The square root of 212020254 is about 14560.9152871652. The cubic root of 212020254 is about 596.2921840334.

Adding to 212020254 its reverse (452020212), we get a palindrome (664040466).

The spelling of 212020254 in words is "two hundred twelve million, twenty thousand, two hundred fifty-four".