20221421212101 has 8 divisors (see below), whose sum is σ = 26962498154304. Its totient is φ = 13480645872320.

The previous prime is 20221421212087. The next prime is 20221421212129. The reversal of 20221421212101 is 10121212412202.

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 20221421212101 - 2⁶ = 20221421212037 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20221421212171) 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, 75244116 + ... + 75512381.

It is an arithmetic number, because the mean of its divisors is an integer number (3370312269288).

Almost surely, 2^{20221421212101} is an apocalyptic number.

It is an amenable number.

20221421212101 is a deficient number, since it is larger than the sum of its proper divisors (6741076942203).

20221421212101 is a wasteful number, since it uses less digits than its factorization.

20221421212101 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 150801211.

The product of its (nonzero) digits is 256, while the sum is 21.

Adding to 20221421212101 its reverse (10121212412202), we get a palindrome (30342633624303).

The spelling of 20221421212101 in words is "twenty trillion, two hundred twenty-one billion, four hundred twenty-one million, two hundred twelve thousand, one hundred one".