20021200122101 has 8 divisors (see below), whose sum is σ = 20047609764000. Its totient is φ = 19994804681040.

The previous prime is 20021200122043. The next prime is 20021200122151. The reversal of 20021200122101 is 10122100212002.

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 20021200122101 - 2²² = 20021195927797 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 (20021200122151) 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, 727151 + ... + 6369548.

It is an arithmetic number, because the mean of its divisors is an integer number (2505951220500).

Almost surely, 2^{20021200122101} is an apocalyptic number.

It is an amenable number.

20021200122101 is a deficient number, since it is larger than the sum of its proper divisors (26409641899).

20021200122101 is a wasteful number, since it uses less digits than its factorization.

20021200122101 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7100419.

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

Adding to 20021200122101 its reverse (10122100212002), we get a palindrome (30143300334103).

The spelling of 20021200122101 in words is "twenty trillion, twenty-one billion, two hundred million, one hundred twenty-two thousand, one hundred one".