201200122220101 has 16 divisors (see below), whose sum is σ = 209151626976000. Its totient is φ = 193318261089408.

The previous prime is 201200122220089. The next prime is 201200122220113. The reversal of 201200122220101 is 101022221002102.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (201200122220089) and next prime (201200122220113).

It is a cyclic number.

It is not a de Polignac number, because 201200122220101 - 2¹⁹ = 201200121695813 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (201200122220501) 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, 13065321 + ... + 23939566.

It is an arithmetic number, because the mean of its divisors is an integer number (13071976686000).

Almost surely, 2^{201200122220101} is an apocalyptic number.

It is an amenable number.

201200122220101 is a deficient number, since it is larger than the sum of its proper divisors (7951504755899).

201200122220101 is a wasteful number, since it uses less digits than its factorization.

201200122220101 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 37005828.

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

Adding to 201200122220101 its reverse (101022221002102), we get a palindrome (302222343222203).

The spelling of 201200122220101 in words is "two hundred one trillion, two hundred billion, one hundred twenty-two million, two hundred twenty thousand, one hundred one".