211204012 has 12 divisors (see below), whose sum is σ = 370069560. Its totient is φ = 105469856.

The previous prime is 211204001. The next prime is 211204043. The reversal of 211204012 is 210402112.

It is a happy number.

It is a super-2 number, since 2×211204012² = 89214269369792288, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 211203983 and 211204001.

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, 29398 + ... + 35869.

It is an arithmetic number, because the mean of its divisors is an integer number (30839130).

Almost surely, 2^211204012 is an apocalyptic number.

It is an amenable number.

211204012 is a deficient number, since it is larger than the sum of its proper divisors (158865548).

211204012 is a wasteful number, since it uses less digits than its factorization.

211204012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 66080 (or 66078 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 13.

The square root of 211204012 is about 14532.8597323445. The cubic root of 211204012 is about 595.5259920465.

Adding to 211204012 its reverse (210402112), we get a palindrome (421606124).

The spelling of 211204012 in words is "two hundred eleven million, two hundred four thousand, twelve".