1451111222 has 16 divisors (see below), whose sum is σ = 2456427600. Its totient is φ = 636851040.

The previous prime is 1451111219. The next prime is 1451111273. The reversal of 1451111222 is 2221111541.

It is a super-2 number, since 2×1451111222² = 4211447557228666568, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 1451111194 and 1451111203.

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, 1136597 + ... + 1137872.

It is an arithmetic number, because the mean of its divisors is an integer number (153526725).

Almost surely, 2^1451111222 is an apocalyptic number.

1451111222 is a deficient number, since it is larger than the sum of its proper divisors (1005316378).

1451111222 is a wasteful number, since it uses less digits than its factorization.

1451111222 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2274511.

The product of its digits is 160, while the sum is 20.

The square root of 1451111222 is about 38093.4537945826. The cubic root of 1451111222 is about 1132.1402572947.

Adding to 1451111222 its reverse (2221111541), we get a palindrome (3672222763).

The spelling of 1451111222 in words is "one billion, four hundred fifty-one million, one hundred eleven thousand, two hundred twenty-two".