1312020222 has 32 divisors (see below), whose sum is σ = 2699339424. Its totient is φ = 424828800.

The previous prime is 1312020221. The next prime is 1312020239. The reversal of 1312020222 is 2220202131.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1312020221) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 142272 + ... + 151212.

It is an arithmetic number, because the mean of its divisors is an integer number (84354357).

Almost surely, 2^1312020222 is an apocalyptic number.

1312020222 is an abundant number, since it is smaller than the sum of its proper divisors (1387319202).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1312020222 is a wasteful number, since it uses less digits than its factorization.

1312020222 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9644.

The product of its (nonzero) digits is 96, while the sum is 15.

The square root of 1312020222 is about 36221.8196947641. The cubic root of 1312020222 is about 1094.7463593838.

Adding to 1312020222 its reverse (2220202131), we get a palindrome (3532222353).

The spelling of 1312020222 in words is "one billion, three hundred twelve million, twenty thousand, two hundred twenty-two".