1320122211000 has 64 divisors (see below), whose sum is σ = 4118781307680. Its totient is φ = 352032588800.

The previous prime is 1320122210993. The next prime is 1320122211073. The reversal of 1320122211000 is 1122210231.

It is a Harshad number since it is a multiple of its sum of digits (15).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 220017369 + ... + 220023368.

Almost surely, 2^{1320122211000} is an apocalyptic number.

1320122211000 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1320122211000 is an abundant number, since it is smaller than the sum of its proper divisors (2798659096680).

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

1320122211000 is a wasteful number, since it uses less digits than its factorization.

1320122211000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 440040761 (or 440040747 counting only the distinct ones).

The product of its (nonzero) digits is 48, while the sum is 15.

Adding to 1320122211000 its reverse (1122210231), we get a palindrome (1321244421231).

The spelling of 1320122211000 in words is "one trillion, three hundred twenty billion, one hundred twenty-two million, two hundred eleven thousand".