1201022011201 has 4 divisors (see below), whose sum is σ = 1201033728900. Its totient is φ = 1201010293504.

The previous prime is 1201022011193. The next prime is 1201022011207. The reversal of 1201022011201 is 1021102201021.

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 947071526976 + 253950484225 = 973176^2 + 503935^2 .

It is a cyclic number.

It is not a de Polignac number, because 1201022011201 - 2³ = 1201022011193 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1201022011207) 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, 5703736 + ... + 5910553.

It is an arithmetic number, because the mean of its divisors is an integer number (300258432225).

Almost surely, 2^{1201022011201} is an apocalyptic number.

It is an amenable number.

1201022011201 is a deficient number, since it is larger than the sum of its proper divisors (11717699).

1201022011201 is a wasteful number, since it uses less digits than its factorization.

1201022011201 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11717698.

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

Adding to 1201022011201 its reverse (1021102201021), we get a palindrome (2222124212222).

The spelling of 1201022011201 in words is "one trillion, two hundred one billion, twenty-two million, eleven thousand, two hundred one".