211263412 has 6 divisors (see below), whose sum is σ = 369710978. Its totient is φ = 105631704.

The previous prime is 211263407. The next prime is 211263421. The reversal of 211263412 is 214362112.

It can be written as a sum of positive squares in only one way, i.e., 151880976 + 59382436 = 12324^2 + 7706^2 .

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 26407923 + ... + 26407930.

Almost surely, 2^211263412 is an apocalyptic number.

It is an amenable number.

211263412 is a deficient number, since it is larger than the sum of its proper divisors (158447566).

211263412 is a wasteful number, since it uses less digits than its factorization.

211263412 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 52815857 (or 52815855 counting only the distinct ones).

The product of its digits is 576, while the sum is 22.

The square root of 211263412 is about 14534.9032332520. The cubic root of 211263412 is about 595.5818163146.

The spelling of 211263412 in words is "two hundred eleven million, two hundred sixty-three thousand, four hundred twelve".