20221201121 has 8 divisors (see below), whose sum is σ = 22062121824. Its totient is φ = 18380718720.

The previous prime is 20221201081. The next prime is 20221201129. The reversal of 20221201121 is 12110212202.

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 20221201121 - 2¹⁸ = 20220938977 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 = 20221201096 and 20221201105.

It is not an unprimeable number, because it can be changed into a prime (20221201129) 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, 9095 + ... + 201308.

It is an arithmetic number, because the mean of its divisors is an integer number (2757765228).

Almost surely, 2^20221201121 is an apocalyptic number.

It is an amenable number.

20221201121 is a deficient number, since it is larger than the sum of its proper divisors (1840920703).

20221201121 is a wasteful number, since it uses less digits than its factorization.

20221201121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 219151.

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

Adding to 20221201121 its reverse (12110212202), we get a palindrome (32331413323).

The spelling of 20221201121 in words is "twenty billion, two hundred twenty-one million, two hundred one thousand, one hundred twenty-one".