20012022212101 has 4 divisors (see below), whose sum is σ = 20012120811232. Its totient is φ = 20011923612972.

The previous prime is 20012022212081. The next prime is 20012022212123. The reversal of 20012022212101 is 10121222021002.

It is a happy number.

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 20012022212101 - 2¹¹ = 20012022210053 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20012022212401) 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, 48994491 + ... + 49401256.

It is an arithmetic number, because the mean of its divisors is an integer number (5003030202808).

Almost surely, 2^{20012022212101} is an apocalyptic number.

It is an amenable number.

20012022212101 is a deficient number, since it is larger than the sum of its proper divisors (98599131).

20012022212101 is an equidigital number, since it uses as much as digits as its factorization.

20012022212101 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 98599130.

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

Adding to 20012022212101 its reverse (10121222021002), we get a palindrome (30133244233103).

The spelling of 20012022212101 in words is "twenty trillion, twelve billion, twenty-two million, two hundred twelve thousand, one hundred one".