2221042450 has 48 divisors (see below), whose sum is σ = 4611553056. Its totient is φ = 788860800.

The previous prime is 2221042441. The next prime is 2221042463. The reversal of 2221042450 is 542401222.

It is a Harshad number since it is a multiple of its sum of digits (22).

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 23307 + ... + 70606.

It is an arithmetic number, because the mean of its divisors is an integer number (96074022).

Almost surely, 2^2221042450 is an apocalyptic number.

2221042450 is an abundant number, since it is smaller than the sum of its proper divisors (2390510606).

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

2221042450 is a wasteful number, since it uses less digits than its factorization.

2221042450 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 93979 (or 93974 counting only the distinct ones).

The product of its (nonzero) digits is 1280, while the sum is 22.

The square root of 2221042450 is about 47127.9370437536. The cubic root of 2221042450 is about 1304.7249069055.

Adding to 2221042450 its reverse (542401222), we get a palindrome (2763443672).

The spelling of 2221042450 in words is "two billion, two hundred twenty-one million, forty-two thousand, four hundred fifty".