1012111201001 has 8 divisors (see below), whose sum is σ = 1069952663520. Its totient is φ = 954726983712.

The previous prime is 1012111200979. The next prime is 1012111201027. The reversal of 1012111201001 is 1001021112101.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1012111201001 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1012111201601) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 114306755 + ... + 114315608.

It is an arithmetic number, because the mean of its divisors is an integer number (133744082940).

Almost surely, 2^{1012111201001} is an apocalyptic number.

It is an amenable number.

1012111201001 is a deficient number, since it is larger than the sum of its proper divisors (57841462519).

1012111201001 is a wasteful number, since it uses less digits than its factorization.

1012111201001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 228622615.

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

Adding to 1012111201001 its reverse (1001021112101), we get a palindrome (2013132313102).

The spelling of 1012111201001 in words is "one trillion, twelve billion, one hundred eleven million, two hundred one thousand, one".