2211672500 has 30 divisors (see below), whose sum is σ = 4836490890. Its totient is φ = 884668000.

The previous prime is 2211672481. The next prime is 2211672503. The reversal of 2211672500 is 52761122.

2211672500 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 5 ways, for example, as 1375074724 + 836597776 = 37082^2 + 28924^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 2211672500.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2211672503) by changing a digit.

It is a polite number, since it can be written in 9 ways as a sum of consecutive naturals, for example, 439835 + ... + 444834.

It is an arithmetic number, because the mean of its divisors is an integer number (161216363).

Almost surely, 2^2211672500 is an apocalyptic number.

2211672500 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2211672500 is an abundant number, since it is smaller than the sum of its proper divisors (2624818390).

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

2211672500 is an equidigital number, since it uses as much as digits as its factorization.

2211672500 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 884693 (or 884676 counting only the distinct ones).

The product of its (nonzero) digits is 1680, while the sum is 26.

The square root of 2211672500 is about 47028.4222571840. The cubic root of 2211672500 is about 1302.8875655989.

The spelling of 2211672500 in words is "two billion, two hundred eleven million, six hundred seventy-two thousand, five hundred".