211961072 has 10 divisors (see below), whose sum is σ = 410674608. Its totient is φ = 105980528.

The previous prime is 211961063. The next prime is 211961081. The reversal of 211961072 is 270169112.

It is an interprime number because it is at equal distance from previous prime (211961063) and next prime (211961081).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6623768 + ... + 6623799.

Almost surely, 2^211961072 is an apocalyptic number.

It is an amenable number.

211961072 is a deficient number, since it is larger than the sum of its proper divisors (198713536).

211961072 is a wasteful number, since it uses less digits than its factorization.

211961072 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13247575 (or 13247569 counting only the distinct ones).

The product of its (nonzero) digits is 1512, while the sum is 29.

The square root of 211961072 is about 14558.8829241807. The cubic root of 211961072 is about 596.2366971205.

The spelling of 211961072 in words is "two hundred eleven million, nine hundred sixty-one thousand, seventy-two".