1201012111201 has 6 divisors (see below), whose sum is σ = 1397095721250. Its totient is φ = 1029438952416.

The previous prime is 1201012111183. The next prime is 1201012111223. The reversal of 1201012111201 is 1021112101021.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 638962021201 + 562050090000 = 799351^2 + 749700^2 .

It is not a de Polignac number, because 1201012111201 - 2¹⁵ = 1201012078433 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1201012111001) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 12255225576 + ... + 12255225673.

It is an arithmetic number, because the mean of its divisors is an integer number (232849286875).

Almost surely, 2^{1201012111201} is an apocalyptic number.

It is an amenable number.

1201012111201 is a deficient number, since it is larger than the sum of its proper divisors (196083610049).

1201012111201 is an equidigital number, since it uses as much as digits as its factorization.

1201012111201 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 24510451263 (or 24510451256 counting only the distinct ones).

The product of its (nonzero) digits is 8, while the sum is 13.

Adding to 1201012111201 its reverse (1021112101021), we get a palindrome (2222124212222).

The spelling of 1201012111201 in words is "one trillion, two hundred one billion, twelve million, one hundred eleven thousand, two hundred one".