201222141222101 has 4 divisors (see below), whose sum is σ = 209970929970912. Its totient is φ = 192473352473292.

The previous prime is 201222141222061. The next prime is 201222141222121. The reversal of 201222141222101 is 101222141222102.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 201222141222101 - 2¹⁰ = 201222141221077 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (23), and also a Moran number because the ratio is a prime number: 8748788748787 = 201222141222101 / (2 + 0 + 1 + 2 + 2 + 2 + 1 + 4 + 1 + 2 + 2 + 2 + 1 + 0 + 1).

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (201222141222121) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4374394374371 + ... + 4374394374416.

It is an arithmetic number, because the mean of its divisors is an integer number (52492732492728).

Almost surely, 2^{201222141222101} is an apocalyptic number.

It is an amenable number.

201222141222101 is a deficient number, since it is larger than the sum of its proper divisors (8748788748811).

201222141222101 is an equidigital number, since it uses as much as digits as its factorization.

201222141222101 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8748788748810.

The product of its (nonzero) digits is 512, while the sum is 23.

Adding to 201222141222101 its reverse (101222141222102), we get a palindrome (302444282444203).

Subtracting from 201222141222101 its reverse (101222141222102), we obtain a palindrome (99999999999999).

The spelling of 201222141222101 in words is "two hundred one trillion, two hundred twenty-two billion, one hundred forty-one million, two hundred twenty-two thousand, one hundred one".