2211942 has 16 divisors (see below), whose sum is σ = 4656960. Its totient is φ = 698472.

The previous prime is 2211941. The next prime is 2211947. The reversal of 2211942 is 2491122.

2211942 = T₄₇₃ + T₄₇₄ + ... + T₄₉₁.

It is a super-2 number, since 2×2211942² = 9785374822728, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2211941) 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, 9588 + ... + 9815.

It is an arithmetic number, because the mean of its divisors is an integer number (291060).

2^2211942 is an apocalyptic number.

2211942 is an abundant number, since it is smaller than the sum of its proper divisors (2445018).

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

2211942 is a wasteful number, since it uses less digits than its factorization.

2211942 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19427.

The product of its digits is 288, while the sum is 21.

The square root of 2211942 is about 1487.2598965884. The cubic root of 2211942 is about 130.2940483913.

The spelling of 2211942 in words is "two million, two hundred eleven thousand, nine hundred forty-two".