2221210090 has 32 divisors (see below), whose sum is σ = 4371169536. Its totient is φ = 805949760.

The previous prime is 2221210087. The next prime is 2221210091. The reversal of 2221210090 is 900121222.

2221210090 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not an unprimeable number, because it can be changed into a prime (2221210091) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 29124 + ... + 72736.

It is an arithmetic number, because the mean of its divisors is an integer number (136599048).

Almost surely, 2^2221210090 is an apocalyptic number.

2221210090 is a deficient number, since it is larger than the sum of its proper divisors (2149959446).

2221210090 is a wasteful number, since it uses less digits than its factorization.

2221210090 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 44094.

The product of its (nonzero) digits is 144, while the sum is 19.

The square root of 2221210090 is about 47129.7155730862. The cubic root of 2221210090 is about 1304.7577321195.

The spelling of 2221210090 in words is "two billion, two hundred twenty-one million, two hundred ten thousand, ninety".