2211139854 has 48 divisors (see below), whose sum is σ = 5972952960. Its totient is φ = 574321680.

The previous prime is 2211139823. The next prime is 2211139871. The reversal of 2211139854 is 4589311122.

2211139854 is a `hidden beast` number, since 2 + 211 + 1 + 398 + 54 = 666.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 796284 + ... + 799055.

It is an arithmetic number, because the mean of its divisors is an integer number (124436520).

Almost surely, 2^2211139854 is an apocalyptic number.

2211139854 is an abundant number, since it is smaller than the sum of its proper divisors (3761813106).

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

2211139854 is a wasteful number, since it uses less digits than its factorization.

2211139854 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1595365 (or 1595362 counting only the distinct ones).

The product of its digits is 17280, while the sum is 36.

The square root of 2211139854 is about 47022.7588939654. The cubic root of 2211139854 is about 1302.7829639805.

The spelling of 2211139854 in words is "two billion, two hundred eleven million, one hundred thirty-nine thousand, eight hundred fifty-four".