1201021011201 has 48 divisors (see below), whose sum is σ = 1782374921600. Its totient is φ = 718751404800.

The previous prime is 1201021011199. The next prime is 1201021011263. The reversal of 1201021011201 is 1021101201021.

It is not a de Polignac number, because 1201021011201 - 2¹ = 1201021011199 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1201021012201) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 13002741 + ... + 13094781.

Almost surely, 2^{1201021011201} is an apocalyptic number.

1201021011201 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

1201021011201 is a deficient number, since it is larger than the sum of its proper divisors (581353910399).

1201021011201 is a wasteful number, since it uses less digits than its factorization.

1201021011201 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 92518 (or 92507 counting only the distinct ones).

The product of its (nonzero) digits is 8, while the sum is 12.

Adding to 1201021011201 its reverse (1021101201021), we get a palindrome (2222122212222).

The spelling of 1201021011201 in words is "one trillion, two hundred one billion, twenty-one million, eleven thousand, two hundred one".