1220112201101 has 8 divisors (see below), whose sum is σ = 1227661362624. Its totient is φ = 1212563818080.

The previous prime is 1220112201097. The next prime is 1220112201127. The reversal of 1220112201101 is 1011022110221.

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 1220112201101 - 2² = 1220112201097 is a prime.

It is a super-2 number, since 2×1220112201101² (a number of 25 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1220112201701) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3124016 + ... + 3492806.

It is an arithmetic number, because the mean of its divisors is an integer number (153457670328).

Almost surely, 2^{1220112201101} is an apocalyptic number.

It is an amenable number.

1220112201101 is a deficient number, since it is larger than the sum of its proper divisors (7549161523).

1220112201101 is a wasteful number, since it uses less digits than its factorization.

1220112201101 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 389251.

The product of its (nonzero) digits is 16, while the sum is 14.

Adding to 1220112201101 its reverse (1011022110221), we get a palindrome (2231134311322).

The spelling of 1220112201101 in words is "one trillion, two hundred twenty billion, one hundred twelve million, two hundred one thousand, one hundred one".