1311400222 has 16 divisors (see below), whose sum is σ = 2162829312. Its totient is φ = 591396120.

The previous prime is 1311400219. The next prime is 1311400267. The reversal of 1311400222 is 2220041131.

It is a junction number, because it is equal to n+sod(n) for n = 1311400196 and 1311400205.

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, 231888 + ... + 237475.

It is an arithmetic number, because the mean of its divisors is an integer number (135176832).

Almost surely, 2^1311400222 is an apocalyptic number.

1311400222 is a deficient number, since it is larger than the sum of its proper divisors (851429090).

1311400222 is a wasteful number, since it uses less digits than its factorization.

1311400222 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 469503.

The product of its (nonzero) digits is 96, while the sum is 16.

The square root of 1311400222 is about 36213.2603061365. The cubic root of 1311400222 is about 1094.5738900693.

Adding to 1311400222 its reverse (2220041131), we get a palindrome (3531441353).

The spelling of 1311400222 in words is "one billion, three hundred eleven million, four hundred thousand, two hundred twenty-two".