201222010121 has 8 divisors (see below), whose sum is σ = 219520586784. Its totient is φ = 182924377920.

The previous prime is 201222010117. The next prime is 201222010123. The reversal of 201222010121 is 121010222102.

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 201222010121 - 2² = 201222010117 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 201222010096 and 201222010105.

It is not an unprimeable number, because it can be changed into a prime (201222010123) 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, 253526 + ... + 683168.

It is an arithmetic number, because the mean of its divisors is an integer number (27440073348).

Almost surely, 2^201222010121 is an apocalyptic number.

It is an amenable number.

201222010121 is a deficient number, since it is larger than the sum of its proper divisors (18298576663).

201222010121 is a wasteful number, since it uses less digits than its factorization.

201222010121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 472231.

The product of its (nonzero) digits is 32, while the sum is 14.

Adding to 201222010121 its reverse (121010222102), we get a palindrome (322232232223).

The spelling of 201222010121 in words is "two hundred one billion, two hundred twenty-two million, ten thousand, one hundred twenty-one".