20221211332121 has 8 divisors (see below), whose sum is σ = 20240339942880. Its totient is φ = 20202090727392.

The previous prime is 20221211332093. The next prime is 20221211332139. The reversal of 20221211332121 is 12123311212202.

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 20221211332121 - 2²⁶ = 20221144223257 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (20221211332151) 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, 3058421 + ... + 7056653.

It is an arithmetic number, because the mean of its divisors is an integer number (2530042492860).

Almost surely, 2^{20221211332121} is an apocalyptic number.

It is an amenable number.

20221211332121 is a deficient number, since it is larger than the sum of its proper divisors (19128610759).

20221211332121 is a wasteful number, since it uses less digits than its factorization.

20221211332121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4003015.

The product of its (nonzero) digits is 576, while the sum is 23.

Adding to 20221211332121 its reverse (12123311212202), we get a palindrome (32344522544323).

The spelling of 20221211332121 in words is "twenty trillion, two hundred twenty-one billion, two hundred eleven million, three hundred thirty-two thousand, one hundred twenty-one".