1201002012101 has 16 divisors (see below), whose sum is σ = 1256156377344. Its totient is φ = 1146095537664.

The previous prime is 1201002012037. The next prime is 1201002012103. The reversal of 1201002012101 is 1012102001021.

It is not a de Polignac number, because 1201002012101 - 2⁶ = 1201002012037 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 (1201002012103) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 17157365 + ... + 17227221.

It is an arithmetic number, because the mean of its divisors is an integer number (78509773584).

Almost surely, 2^{1201002012101} is an apocalyptic number.

It is an amenable number.

1201002012101 is a deficient number, since it is larger than the sum of its proper divisors (55154365243).

1201002012101 is an equidigital number, since it uses as much as digits as its factorization.

1201002012101 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 71620.

The product of its (nonzero) digits is 8, while the sum is 11.

Adding to 1201002012101 its reverse (1012102001021), we get a palindrome (2213104013122).

The spelling of 1201002012101 in words is "one trillion, two hundred one billion, two million, twelve thousand, one hundred one".