20122121102101 has 8 divisors (see below), whose sum is σ = 20422824801120. Its totient is φ = 19821428389488.

The previous prime is 20122121102081. The next prime is 20122121102107. The reversal of 20122121102101 is 10120112122102.

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 20122121102101 - 2¹³ = 20122121093909 is a prime.

It is a super-2 number, since 2×20122121102101² (a number of 27 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20122121102107) 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, 981390 + ... + 6419296.

It is an arithmetic number, because the mean of its divisors is an integer number (2552853100140).

Almost surely, 2^{20122121102101} is an apocalyptic number.

It is an amenable number.

20122121102101 is a deficient number, since it is larger than the sum of its proper divisors (300703699019).

20122121102101 is an equidigital number, since it uses as much as digits as its factorization.

20122121102101 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5493203.

The product of its (nonzero) digits is 32, while the sum is 16.

Adding to 20122121102101 its reverse (10120112122102), we get a palindrome (30242233224203).

The spelling of 20122121102101 in words is "twenty trillion, one hundred twenty-two billion, one hundred twenty-one million, one hundred two thousand, one hundred one".