2220154442 has 32 divisors (see below), whose sum is σ = 3799626624. Its totient is φ = 963072000.

The previous prime is 2220154439. The next prime is 2220154513. The reversal of 2220154442 is 2444510222.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 226442 + ... + 236042.

It is an arithmetic number, because the mean of its divisors is an integer number (118738332).

Almost surely, 2^2220154442 is an apocalyptic number.

2220154442 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

2220154442 is a deficient number, since it is larger than the sum of its proper divisors (1579472182).

2220154442 is a wasteful number, since it uses less digits than its factorization.

2220154442 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10094.

The product of its (nonzero) digits is 5120, while the sum is 26.

The square root of 2220154442 is about 47118.5148535053. The cubic root of 2220154442 is about 1304.5510004892.

Adding to 2220154442 its reverse (2444510222), we get a palindrome (4664664664).

The spelling of 2220154442 in words is "two billion, two hundred twenty million, one hundred fifty-four thousand, four hundred forty-two".