1021200113101 has 8 divisors (see below), whose sum is σ = 1167115137984. Its totient is φ = 875292411840.

The previous prime is 1021200113069. The next prime is 1021200113117. The reversal of 1021200113101 is 1013110021201.

It is a happy number.

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

It is not a de Polignac number, because 1021200113101 - 2⁵ = 1021200113069 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1021200113161) 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, 1528780 + ... + 2092741.

It is an arithmetic number, because the mean of its divisors is an integer number (145889392248).

Almost surely, 2^{1021200113101} is an apocalyptic number.

It is an amenable number.

1021200113101 is a deficient number, since it is larger than the sum of its proper divisors (145915024883).

1021200113101 is an equidigital number, since it uses as much as digits as its factorization.

1021200113101 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3661811.

The product of its (nonzero) digits is 12, while the sum is 13.

Adding to 1021200113101 its reverse (1013110021201), we get a palindrome (2034310134302).

The spelling of 1021200113101 in words is "one trillion, twenty-one billion, two hundred million, one hundred thirteen thousand, one hundred one".