1355251222 has 12 divisors (see below), whose sum is σ = 2201281380. Its totient is φ = 625500408.

The previous prime is 1355251201. The next prime is 1355251223. The reversal of 1355251222 is 2221525531.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1355251223) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 2004472 + ... + 2005147.

It is an arithmetic number, because the mean of its divisors is an integer number (183440115).

Almost surely, 2^1355251222 is an apocalyptic number.

1355251222 is a deficient number, since it is larger than the sum of its proper divisors (846030158).

1355251222 is a wasteful number, since it uses less digits than its factorization.

1355251222 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4009647 (or 4009634 counting only the distinct ones).

The product of its digits is 6000, while the sum is 28.

The square root of 1355251222 is about 36813.7368654691. The cubic root of 1355251222 is about 1106.6406079451.

Adding to 1355251222 its reverse (2221525531), we get a palindrome (3576776753).

The spelling of 1355251222 in words is "one billion, three hundred fifty-five million, two hundred fifty-one thousand, two hundred twenty-two".