202122001121 has 8 divisors (see below), whose sum is σ = 212780518080. Its totient is φ = 191465535888.

The previous prime is 202122001099. The next prime is 202122001127. The reversal of 202122001121 is 121100221202.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-202122001121 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 = 202122001096 and 202122001105.

It is not an unprimeable number, because it can be changed into a prime (202122001127) 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, 308621 + ... + 706746.

It is an arithmetic number, because the mean of its divisors is an integer number (26597564760).

Almost surely, 2^202122001121 is an apocalyptic number.

It is an amenable number.

202122001121 is a deficient number, since it is larger than the sum of its proper divisors (10658516959).

202122001121 is a wasteful number, since it uses less digits than its factorization.

202122001121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1025863.

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

Adding to 202122001121 its reverse (121100221202), we get a palindrome (323222222323).

The spelling of 202122001121 in words is "two hundred two billion, one hundred twenty-two million, one thousand, one hundred twenty-one".