201102222201221 has 32 divisors (see below), whose sum is σ = 227121039573120. Its totient is φ = 176382454393600.

The previous prime is 201102222201217. The next prime is 201102222201229. The reversal of 201102222201221 is 122102222201102.

It is a cyclic number.

It is not a de Polignac number, because 201102222201221 - 2² = 201102222201217 is a prime.

It is a super-2 number, since 2×201102222201221² (a number of 29 digits) contains 22 as substring.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 201102222201193 and 201102222201202.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (201102222201229) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 3389352671 + ... + 3389412003.

It is an arithmetic number, because the mean of its divisors is an integer number (7097532486660).

Almost surely, 2^{201102222201221} is an apocalyptic number.

It is an amenable number.

201102222201221 is a deficient number, since it is larger than the sum of its proper divisors (26018817371899).

201102222201221 is a wasteful number, since it uses less digits than its factorization.

201102222201221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 67237.

The product of its (nonzero) digits is 256, while the sum is 20.

Adding to 201102222201221 its reverse (122102222201102), we get a palindrome (323204444402323).

The spelling of 201102222201221 in words is "two hundred one trillion, one hundred two billion, two hundred twenty-two million, two hundred one thousand, two hundred twenty-one".