2211123442 has 32 divisors (see below), whose sum is σ = 3815424000. Its totient is φ = 950461200.

The previous prime is 2211123433. The next prime is 2211123443. The reversal of 2211123442 is 2443211122.

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

It is not an unprimeable number, because it can be changed into a prime (2211123443) 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, 245967 + ... + 254797.

It is an arithmetic number, because the mean of its divisors is an integer number (119232000).

Almost surely, 2^2211123442 is an apocalyptic number.

2211123442 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

2211123442 is a deficient number, since it is larger than the sum of its proper divisors (1604300558).

2211123442 is a wasteful number, since it uses less digits than its factorization.

2211123442 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9462.

The product of its digits is 768, while the sum is 22.

The square root of 2211123442 is about 47022.5843824008. The cubic root of 2211123442 is about 1302.7797407068.

Adding to 2211123442 its reverse (2443211122), we get a palindrome (4654334564).

The spelling of 2211123442 in words is "two billion, two hundred eleven million, one hundred twenty-three thousand, four hundred forty-two".