1375421222 has 32 divisors (see below), whose sum is σ = 2449465920. Its totient is φ = 566737920.

The previous prime is 1375421213. The next prime is 1375421249. The reversal of 1375421222 is 2221245731.

It is a Harshad number since it is a multiple of its sum of digits (29).

It is a congruent number.

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, 90818 + ... + 104874.

It is an arithmetic number, because the mean of its divisors is an integer number (76545810).

Almost surely, 2^1375421222 is an apocalyptic number.

1375421222 is a deficient number, since it is larger than the sum of its proper divisors (1074044698).

1375421222 is a wasteful number, since it uses less digits than its factorization.

1375421222 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14336.

The product of its digits is 6720, while the sum is 29.

The square root of 1375421222 is about 37086.6717568455. The cubic root of 1375421222 is about 1112.1035839148.

Adding to 1375421222 its reverse (2221245731), we get a palindrome (3596666953).

The spelling of 1375421222 in words is "one billion, three hundred seventy-five million, four hundred twenty-one thousand, two hundred twenty-two".