201022112221121 has 8 divisors (see below), whose sum is σ = 201037716251424. Its totient is φ = 201006508785120.

The previous prime is 201022112221111. The next prime is 201022112221159. The reversal of 201022112221121 is 121122211220102.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 201022112221121 - 2⁶ = 201022112221057 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 201022112221093 and 201022112221102.

It is not an unprimeable number, because it can be changed into a prime (201022112221111) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 858265790 + ... + 858499976.

It is an arithmetic number, because the mean of its divisors is an integer number (25129714531428).

Almost surely, 2^{201022112221121} is an apocalyptic number.

It is an amenable number.

201022112221121 is a deficient number, since it is larger than the sum of its proper divisors (15604030303).

201022112221121 is a wasteful number, since it uses less digits than its factorization.

201022112221121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 297151.

The product of its (nonzero) digits is 128, while the sum is 20.

Adding to 201022112221121 its reverse (121122211220102), we get a palindrome (322144323441223).

The spelling of 201022112221121 in words is "two hundred one trillion, twenty-two billion, one hundred twelve million, two hundred twenty-one thousand, one hundred twenty-one".