1011201112001 has 4 divisors (see below), whose sum is σ = 1070683530372. Its totient is φ = 951718693632.

The previous prime is 1011201111961. The next prime is 1011201112039. The reversal of 1011201112001 is 1002111021101.

1011201112001 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 697853061376 + 313348050625 = 835376^2 + 559775^2 .

It is a cyclic number.

It is not a de Polignac number, because 1011201112001 - 2³⁰ = 1010127370177 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1011201112091) 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, 29741209160 + ... + 29741209193.

It is an arithmetic number, because the mean of its divisors is an integer number (267670882593).

Almost surely, 2^{1011201112001} is an apocalyptic number.

It is an amenable number.

1011201112001 is a deficient number, since it is larger than the sum of its proper divisors (59482418371).

1011201112001 is an equidigital number, since it uses as much as digits as its factorization.

1011201112001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 59482418370.

The product of its (nonzero) digits is 4, while the sum is 11.

Adding to 1011201112001 its reverse (1002111021101), we get a palindrome (2013312133102).

It can be divided in two parts, 101120 and 1112001, that added together give a palindrome (1213121).

The spelling of 1011201112001 in words is "one trillion, eleven billion, two hundred one million, one hundred twelve thousand, one".