1101220120201 has 8 divisors (see below), whose sum is σ = 1129144350024. Its totient is φ = 1073560575360.

The previous prime is 1101220120183. The next prime is 1101220120211. The reversal of 1101220120201 is 1020210221011.

It can be written as a sum of positive squares in 4 ways, for example, as 344215716601 + 757004403600 = 586699^2 + 870060^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 1101220120201 - 2¹³ = 1101220112009 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1101220120211) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 66162820 + ... + 66179461.

It is an arithmetic number, because the mean of its divisors is an integer number (141143043753).

Almost surely, 2^{1101220120201} is an apocalyptic number.

It is an amenable number.

1101220120201 is a deficient number, since it is larger than the sum of its proper divisors (27924229823).

1101220120201 is a wasteful number, since it uses less digits than its factorization.

1101220120201 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 132342491.

The product of its (nonzero) digits is 16, while the sum is 13.

Adding to 1101220120201 its reverse (1020210221011), we get a palindrome (2121430341212).

The spelling of 1101220120201 in words is "one trillion, one hundred one billion, two hundred twenty million, one hundred twenty thousand, two hundred one".