1144212222 has 16 divisors (see below), whose sum is σ = 2289920400. Its totient is φ = 381154752.

The previous prime is 1144212191. The next prime is 1144212233. The reversal of 1144212222 is 2222124411.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 52263 + ... + 70850.

It is an arithmetic number, because the mean of its divisors is an integer number (143120025).

Almost surely, 2^1144212222 is an apocalyptic number.

1144212222 is an abundant number, since it is smaller than the sum of its proper divisors (1145708178).

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

1144212222 is a wasteful number, since it uses less digits than its factorization.

1144212222 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 124667.

The product of its digits is 512, while the sum is 21.

The square root of 1144212222 is about 33826.2061425753. The cubic root of 1144212222 is about 1045.9289746762.

Adding to 1144212222 its reverse (2222124411), we get a palindrome (3366336633).

The spelling of 1144212222 in words is "one billion, one hundred forty-four million, two hundred twelve thousand, two hundred twenty-two".