1201013102221 has 4 divisors (see below), whose sum is σ = 1217465336572. Its totient is φ = 1184560867872.

The previous prime is 1201013102189. The next prime is 1201013102239. The reversal of 1201013102221 is 1222013101021.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 893287729321 + 307725372900 = 945139^2 + 554730^2 .

It is a cyclic number.

It is not a de Polignac number, because 1201013102221 - 2⁵ = 1201013102189 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1201013102195 and 1201013102204.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1201013102621) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 8226117066 + ... + 8226117211.

It is an arithmetic number, because the mean of its divisors is an integer number (304366334143).

Almost surely, 2^{1201013102221} is an apocalyptic number.

It is an amenable number.

1201013102221 is a deficient number, since it is larger than the sum of its proper divisors (16452234351).

1201013102221 is an equidigital number, since it uses as much as digits as its factorization.

1201013102221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16452234350.

The product of its (nonzero) digits is 48, while the sum is 16.

Adding to 1201013102221 its reverse (1222013101021), we get a palindrome (2423026203242).

The spelling of 1201013102221 in words is "one trillion, two hundred one billion, thirteen million, one hundred two thousand, two hundred twenty-one".