1220112100001 has 8 divisors (see below), whose sum is σ = 1220961841920. Its totient is φ = 1219262612512.

The previous prime is 1220112099977. The next prime is 1220112100027. The reversal of 1220112100001 is 1000012110221.

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

It is a cyclic number.

It is not a de Polignac number, because 1220112100001 - 2¹⁰ = 1220112098977 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1220112000001) 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, 10087781 + ... + 10208013.

It is an arithmetic number, because the mean of its divisors is an integer number (152620230240).

Almost surely, 2^{1220112100001} is an apocalyptic number.

It is an amenable number.

1220112100001 is a deficient number, since it is larger than the sum of its proper divisors (849741919).

1220112100001 is a wasteful number, since it uses less digits than its factorization.

1220112100001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 127215.

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

Adding to 1220112100001 its reverse (1000012110221), we get a palindrome (2220124210222).

The spelling of 1220112100001 in words is "one trillion, two hundred twenty billion, one hundred twelve million, one hundred thousand, one".