2211045554 has 4 divisors (see below), whose sum is σ = 3316568334. Its totient is φ = 1105522776.

The previous prime is 2211045527. The next prime is 2211045559. The reversal of 2211045554 is 4555401122.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 2086388329 + 124657225 = 45677^2 + 11165^2 .

It is not an unprimeable number, because it can be changed into a prime (2211045559) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 552761387 + ... + 552761390.

Almost surely, 2^2211045554 is an apocalyptic number.

2211045554 is a deficient number, since it is larger than the sum of its proper divisors (1105522780).

2211045554 is a wasteful number, since it uses less digits than its factorization.

2211045554 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1105522779.

The product of its (nonzero) digits is 8000, while the sum is 29.

The square root of 2211045554 is about 47021.7561773271. The cubic root of 2211045554 is about 1302.7644434906.

Adding to 2211045554 its reverse (4555401122), we get a palindrome (6766446676).

The spelling of 2211045554 in words is "two billion, two hundred eleven million, forty-five thousand, five hundred fifty-four".