1320211110440 has 32 divisors (see below), whose sum is σ = 2970507703680. Its totient is φ = 528078629952.

The previous prime is 1320211110391. The next prime is 1320211110457. The reversal of 1320211110440 is 440111120231.

It is a super-2 number, since 2×1320211110440² (a number of 25 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (20).

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, 7063877 + ... + 7248363.

It is an arithmetic number, because the mean of its divisors is an integer number (92828365740).

Almost surely, 2^{1320211110440} is an apocalyptic number.

1320211110440 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1320211110440 is an abundant number, since it is smaller than the sum of its proper divisors (1650296593240).

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

1320211110440 is a wasteful number, since it uses less digits than its factorization.

1320211110440 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 363401 (or 363397 counting only the distinct ones).

The product of its (nonzero) digits is 192, while the sum is 20.

Adding to 1320211110440 its reverse (440111120231), we get a palindrome (1760322230671).

The spelling of 1320211110440 in words is "one trillion, three hundred twenty billion, two hundred eleven million, one hundred ten thousand, four hundred forty".