1320022210021 has 64 divisors (see below), whose sum is σ = 1448834252800. Its totient is φ = 1198741939200.

The previous prime is 1320022210009. The next prime is 1320022210027. The reversal of 1320022210021 is 1200122200231.

It is a happy number.

It is not a de Polignac number, because 1320022210021 - 2⁷ = 1320022209893 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1320022209977 and 1320022210004.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1320022210027) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 3596790580 + ... + 3596790946.

It is an arithmetic number, because the mean of its divisors is an integer number (22638035200).

Almost surely, 2^{1320022210021} is an apocalyptic number.

It is an amenable number.

1320022210021 is a deficient number, since it is larger than the sum of its proper divisors (128812042779).

1320022210021 is a wasteful number, since it uses less digits than its factorization.

1320022210021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 930.

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

Adding to 1320022210021 its reverse (1200122200231), we get a palindrome (2520144410252).

The spelling of 1320022210021 in words is "one trillion, three hundred twenty billion, twenty-two million, two hundred ten thousand, twenty-one".