1220012222101 has 16 divisors (see below), whose sum is σ = 1334569420800. Its totient is φ = 1112141116800.

The previous prime is 1220012222083. The next prime is 1220012222141. The reversal of 1220012222101 is 1012222100221.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 1220012222101 - 2⁵ = 1220012222069 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1220012222141) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 16512861 + ... + 16586578.

It is an arithmetic number, because the mean of its divisors is an integer number (83410588800).

Almost surely, 2^{1220012222101} is an apocalyptic number.

It is an amenable number.

1220012222101 is a deficient number, since it is larger than the sum of its proper divisors (114557198699).

1220012222101 is a wasteful number, since it uses less digits than its factorization.

1220012222101 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 33099540.

The product of its (nonzero) digits is 64, while the sum is 16.

Adding to 1220012222101 its reverse (1012222100221), we get a palindrome (2232234322322).

The spelling of 1220012222101 in words is "one trillion, two hundred twenty billion, twelve million, two hundred twenty-two thousand, one hundred one".