1320221233101 has 16 divisors (see below), whose sum is σ = 1762142370624. Its totient is φ = 879224083584.

The previous prime is 1320221233091. The next prime is 1320221233127. The reversal of 1320221233101 is 1013321220231.

It is not a de Polignac number, because 1320221233101 - 2⁷ = 1320221232973 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1320221232101) 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, 19983415 + ... + 20049371.

It is an arithmetic number, because the mean of its divisors is an integer number (110133898164).

Almost surely, 2^{1320221233101} is an apocalyptic number.

It is an amenable number.

1320221233101 is a deficient number, since it is larger than the sum of its proper divisors (441921137523).

1320221233101 is a wasteful number, since it uses less digits than its factorization.

1320221233101 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 72860.

The product of its (nonzero) digits is 432, while the sum is 21.

Adding to 1320221233101 its reverse (1013321220231), we get a palindrome (2333542453332).

The spelling of 1320221233101 in words is "one trillion, three hundred twenty billion, two hundred twenty-one million, two hundred thirty-three thousand, one hundred one".