211850842 has 16 divisors (see below), whose sum is σ = 365948352. Its totient is φ = 90099360.

The previous prime is 211850839. The next prime is 211850843. The reversal of 211850842 is 248058112.

It is a super-2 number, since 2×211850842² = 89761558512217928, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (211850843) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 55923 + ... + 59590.

It is an arithmetic number, because the mean of its divisors is an integer number (22871772).

Almost surely, 2^211850842 is an apocalyptic number.

211850842 is a deficient number, since it is larger than the sum of its proper divisors (154097510).

211850842 is a wasteful number, since it uses less digits than its factorization.

211850842 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 115653.

The product of its (nonzero) digits is 5120, while the sum is 31.

The square root of 211850842 is about 14555.0967705474. The cubic root of 211850842 is about 596.1333219003.

The spelling of 211850842 in words is "two hundred eleven million, eight hundred fifty thousand, eight hundred forty-two".