1202112100001 has 8 divisors (see below), whose sum is σ = 1212810123744. Its totient is φ = 1191415126720.

The previous prime is 1202112099989. The next prime is 1202112100031. The reversal of 1202112100001 is 1000012112021.

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-1202112100001 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1202112100031) 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, 2133086 + ... + 2637096.

It is an arithmetic number, because the mean of its divisors is an integer number (151601265468).

Almost surely, 2^{1202112100001} is an apocalyptic number.

It is an amenable number.

1202112100001 is a deficient number, since it is larger than the sum of its proper divisors (10698023743).

1202112100001 is a wasteful number, since it uses less digits than its factorization.

1202112100001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 525231.

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

Adding to 1202112100001 its reverse (1000012112021), we get a palindrome (2202124212022).

The spelling of 1202112100001 in words is "one trillion, two hundred two billion, one hundred twelve million, one hundred thousand, one".