1101221320101 has 16 divisors (see below), whose sum is σ = 1735915382400. Its totient is φ = 607570383168.

The previous prime is 1101221320061. The next prime is 1101221320103. The reversal of 1101221320101 is 1010231221011.

It is not a de Polignac number, because 1101221320101 - 2⁷ = 1101221319973 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1101221320103) 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, 904121986 + ... + 904123203.

It is an arithmetic number, because the mean of its divisors is an integer number (108494711400).

Almost surely, 2^{1101221320101} is an apocalyptic number.

It is an amenable number.

1101221320101 is a deficient number, since it is larger than the sum of its proper divisors (634694062299).

1101221320101 is a wasteful number, since it uses less digits than its factorization.

1101221320101 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1808245228.

The product of its (nonzero) digits is 24, while the sum is 15.

Adding to 1101221320101 its reverse (1010231221011), we get a palindrome (2111452541112).

The spelling of 1101221320101 in words is "one trillion, one hundred one billion, two hundred twenty-one million, three hundred twenty thousand, one hundred one".