1221114344 has 64 divisors (see below), whose sum is σ = 2573683200. Its totient is φ = 540340416.

The previous prime is 1221114331. The next prime is 1221114353. The reversal of 1221114344 is 4434111221.

It is a super-2 number, since 2×1221114344² = 2982240482245100672, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (23).

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, 146267 + ... + 154389.

It is an arithmetic number, because the mean of its divisors is an integer number (40213800).

Almost surely, 2^1221114344 is an apocalyptic number.

It is an amenable number.

1221114344 is an abundant number, since it is smaller than the sum of its proper divisors (1352568856).

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

1221114344 is a wasteful number, since it uses less digits than its factorization.

1221114344 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8214 (or 8210 counting only the distinct ones).

The product of its digits is 768, while the sum is 23.

The square root of 1221114344 is about 34944.4465401872. The cubic root of 1221114344 is about 1068.8549616645.

Adding to 1221114344 its reverse (4434111221), we get a palindrome (5655225565).

The spelling of 1221114344 in words is "one billion, two hundred twenty-one million, one hundred fourteen thousand, three hundred forty-four".