20221200010121 has 4 divisors (see below), whose sum is σ = 22059490920144. Its totient is φ = 18382909100100.

The previous prime is 20221200010103. The next prime is 20221200010147. The reversal of 20221200010121 is 12101000212202.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 20221200010121 - 2¹⁴ = 20221199993737 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 20221200010096 and 20221200010105.

It is not an unprimeable number, because it can be changed into a prime (20221200010171) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 919145454995 + ... + 919145455016.

It is an arithmetic number, because the mean of its divisors is an integer number (5514872730036).

Almost surely, 2^{20221200010121} is an apocalyptic number.

It is an amenable number.

20221200010121 is a deficient number, since it is larger than the sum of its proper divisors (1838290910023).

20221200010121 is a wasteful number, since it uses less digits than its factorization.

20221200010121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1838290910022.

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

Adding to 20221200010121 its reverse (12101000212202), we get a palindrome (32322200222323).

The spelling of 20221200010121 in words is "twenty trillion, two hundred twenty-one billion, two hundred million, ten thousand, one hundred twenty-one".