2211012252 has 18 divisors (see below), whose sum is σ = 5588947728. Its totient is φ = 737004072.

The previous prime is 2211012233. The next prime is 2211012253. The reversal of 2211012252 is 2522101122.

2211012252 is digitally balanced in base 2 and base 4, because in such bases it contains all the possibile digits an equal number of times.

It is a tau number, because it is divible by the number of its divisors (18).

It is a super-2 number, since 2×2211012252² = 9777150356988223008, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2211012253) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 30708468 + ... + 30708539.

It is an arithmetic number, because the mean of its divisors is an integer number (310497096).

Almost surely, 2^2211012252 is an apocalyptic number.

It is an amenable number.

2211012252 is an abundant number, since it is smaller than the sum of its proper divisors (3377935476).

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

2211012252 is a wasteful number, since it uses less digits than its factorization.

2211012252 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 61417017 (or 61417012 counting only the distinct ones).

The product of its (nonzero) digits is 160, while the sum is 18.

The square root of 2211012252 is about 47021.4020633158. The cubic root of 2211012252 is about 1302.7579028626.

Adding to 2211012252 its reverse (2522101122), we get a palindrome (4733113374).

The spelling of 2211012252 in words is "two billion, two hundred eleven million, twelve thousand, two hundred fifty-two".