20012220202101 has 128 divisors (see below), whose sum is σ = 31629921984000. Its totient is φ = 11169690255360.

The previous prime is 20012220202043. The next prime is 20012220202133. The reversal of 20012220202101 is 10120202221002.

It is not a de Polignac number, because 20012220202101 - 2¹⁴ = 20012220185717 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20012220202801) by changing a digit.

It is a polite number, since it can be written in 127 ways as a sum of consecutive naturals, for example, 115826425 + ... + 115999073.

It is an arithmetic number, because the mean of its divisors is an integer number (247108765500).

Almost surely, 2^{20012220202101} is an apocalyptic number.

It is an amenable number.

20012220202101 is a deficient number, since it is larger than the sum of its proper divisors (11617701781899).

20012220202101 is a wasteful number, since it uses less digits than its factorization.

20012220202101 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 172839.

The product of its (nonzero) digits is 64, while the sum is 15.

Adding to 20012220202101 its reverse (10120202221002), we get a palindrome (30132422423103).

The spelling of 20012220202101 in words is "twenty trillion, twelve billion, two hundred twenty million, two hundred two thousand, one hundred one".