20222121130121 has 16 divisors (see below), whose sum is σ = 21032102192640. Its totient is φ = 19427595707520.

The previous prime is 20222121130087. The next prime is 20222121130153. The reversal of 20222121130121 is 12103112122202.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-20222121130121 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 20222121130093 and 20222121130102.

It is not an unprimeable number, because it can be changed into a prime (20222121133121) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 221123021 + ... + 221214453.

It is an arithmetic number, because the mean of its divisors is an integer number (1314506387040).

Almost surely, 2^{20222121130121} is an apocalyptic number.

It is an amenable number.

20222121130121 is a deficient number, since it is larger than the sum of its proper divisors (809981062519).

20222121130121 is an equidigital number, since it uses as much as digits as its factorization.

20222121130121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 175856.

The product of its (nonzero) digits is 192, while the sum is 20.

Adding to 20222121130121 its reverse (12103112122202), we get a palindrome (32325233252323).

The spelling of 20222121130121 in words is "twenty trillion, two hundred twenty-two billion, one hundred twenty-one million, one hundred thirty thousand, one hundred twenty-one".