2221135401 has 16 divisors (see below), whose sum is σ = 3008808000. Its totient is φ = 1457293248.

The previous prime is 2221135393. The next prime is 2221135429. The reversal of 2221135401 is 1045311222.

It is not a de Polignac number, because 2221135401 - 2³ = 2221135393 is a prime.

It is not an unprimeable number, because it can be changed into a prime (2221135801) 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, 25930 + ... + 71516.

It is an arithmetic number, because the mean of its divisors is an integer number (188050500).

Almost surely, 2^2221135401 is an apocalyptic number.

It is an amenable number.

2221135401 is a deficient number, since it is larger than the sum of its proper divisors (787672599).

2221135401 is a wasteful number, since it uses less digits than its factorization.

2221135401 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 45848.

The product of its (nonzero) digits is 480, while the sum is 21.

The square root of 2221135401 is about 47128.9231894810. The cubic root of 2221135401 is about 1304.7431076372.

Adding to 2221135401 its reverse (1045311222), we get a palindrome (3266446623).

The spelling of 2221135401 in words is "two billion, two hundred twenty-one million, one hundred thirty-five thousand, four hundred one".