201222012101121 has 36 divisors (see below), whose sum is σ = 323172576404496. Its totient is φ = 119651739448800.

The previous prime is 201222012101119. The next prime is 201222012101147. The reversal of 201222012101121 is 121101210222102.

201222012101121 is a `hidden beast` number, since 20 + 122 + 201 + 210 + 112 + 1 = 666.

It is not a de Polignac number, because 201222012101121 - 2¹ = 201222012101119 is a prime.

It is a super-2 number, since 2×201222012101121² (a number of 29 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 201222012101094 and 201222012101103.

It is not an unprimeable number, because it can be changed into a prime (201222012108121) 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 35 ways as a sum of consecutive naturals, for example, 361513575 + ... + 362069756.

It is an arithmetic number, because the mean of its divisors is an integer number (8977016011236).

Almost surely, 2^{201222012101121} is an apocalyptic number.

It is an amenable number.

201222012101121 is a deficient number, since it is larger than the sum of its proper divisors (121950564303375).

201222012101121 is a wasteful number, since it uses less digits than its factorization.

201222012101121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 723583454 (or 723583398 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 18.

Adding to 201222012101121 its reverse (121101210222102), we get a palindrome (322323222323223).

The spelling of 201222012101121 in words is "two hundred one trillion, two hundred twenty-two billion, twelve million, one hundred one thousand, one hundred twenty-one".