1351520222 has 16 divisors (see below), whose sum is σ = 2190349392. Its totient is φ = 621743040.

The previous prime is 1351520197. The next prime is 1351520251. The reversal of 1351520222 is 2220251531.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 76679 + ... + 92642.

It is an arithmetic number, because the mean of its divisors is an integer number (136896837).

Almost surely, 2^1351520222 is an apocalyptic number.

1351520222 is a deficient number, since it is larger than the sum of its proper divisors (838829170).

1351520222 is a wasteful number, since it uses less digits than its factorization.

1351520222 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 169643.

The product of its (nonzero) digits is 1200, while the sum is 23.

The square root of 1351520222 is about 36763.0279220850. The cubic root of 1351520222 is about 1105.6241492074.

Adding to 1351520222 its reverse (2220251531), we get a palindrome (3571771753).

The spelling of 1351520222 in words is "one billion, three hundred fifty-one million, five hundred twenty thousand, two hundred twenty-two".