1321220100130 has 64 divisors (see below), whose sum is σ = 2833392752640. Its totient is φ = 434036736000.

The previous prime is 1321220100119. The next prime is 1321220100143. The reversal of 1321220100130 is 310010221231.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 2794975 + ... + 3233314.

It is an arithmetic number, because the mean of its divisors is an integer number (44271761760).

Almost surely, 2^{1321220100130} is an apocalyptic number.

1321220100130 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1321220100130 is an abundant number, since it is smaller than the sum of its proper divisors (1512172652510).

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

1321220100130 is a wasteful number, since it uses less digits than its factorization.

1321220100130 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6028435.

The product of its (nonzero) digits is 72, while the sum is 16.

Adding to 1321220100130 its reverse (310010221231), we get a palindrome (1631230321361).

The spelling of 1321220100130 in words is "one trillion, three hundred twenty-one billion, two hundred twenty million, one hundred thousand, one hundred thirty".