20122100022121 has 8 divisors (see below), whose sum is σ = 20155517474400. Its totient is φ = 20088691308000.

The previous prime is 20122100022061. The next prime is 20122100022131. The reversal of 20122100022121 is 12122000122102.

It is a happy number.

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 20122100022121 - 2²³ = 20122091633513 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 20122100022095 and 20122100022104.

It is not an unprimeable number, because it can be changed into a prime (20122100022131) 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, 2432950 + ... + 6794368.

It is an arithmetic number, because the mean of its divisors is an integer number (2519439684300).

Almost surely, 2^{20122100022121} is an apocalyptic number.

It is an amenable number.

20122100022121 is a deficient number, since it is larger than the sum of its proper divisors (33417452279).

20122100022121 is an equidigital number, since it uses as much as digits as its factorization.

20122100022121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4369079.

The product of its (nonzero) digits is 64, while the sum is 16.

Adding to 20122100022121 its reverse (12122000122102), we get a palindrome (32244100144223).

The spelling of 20122100022121 in words is "twenty trillion, one hundred twenty-two billion, one hundred million, twenty-two thousand, one hundred twenty-one".