2211145452 has 36 divisors (see below), whose sum is σ = 5796297416. Its totient is φ = 737048160.

The previous prime is 2211145439. The next prime is 2211145499. The reversal of 2211145452 is 2545411122.

It is a happy number.

2211145452 is a `hidden beast` number, since 2 + 2 + 1 + 114 + 545 + 2 = 666.

It is a tau number, because it is divible by the number of its divisors (36).

It is a Harshad number since it is a multiple of its sum of digits (27).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1136449 + ... + 1138392.

Almost surely, 2^2211145452 is an apocalyptic number.

It is an amenable number.

2211145452 is an abundant number, since it is smaller than the sum of its proper divisors (3585151964).

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

2211145452 is a wasteful number, since it uses less digits than its factorization.

2211145452 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2274860 (or 2274846 counting only the distinct ones).

The product of its digits is 3200, while the sum is 27.

The square root of 2211145452 is about 47022.8184182956. The cubic root of 2211145452 is about 1302.7840634093.

Adding to 2211145452 its reverse (2545411122), we get a palindrome (4756556574).

The spelling of 2211145452 in words is "two billion, two hundred eleven million, one hundred forty-five thousand, four hundred fifty-two".