20022100101 has 20 divisors (see below), whose sum is σ = 29918250912. Its totient is φ = 13344186888.

The previous prime is 20022100061. The next prime is 20022100127. The reversal of 20022100101 is 10100122002.

It is not a de Polignac number, because 20022100101 - 2¹⁰ = 20022099077 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (9).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20022100171) by changing a digit.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 259350 + ... + 327576.

Almost surely, 2^20022100101 is an apocalyptic number.

It is an amenable number.

20022100101 is a deficient number, since it is larger than the sum of its proper divisors (9896150811).

20022100101 is an equidigital number, since it uses as much as digits as its factorization.

20022100101 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 71862 (or 71853 counting only the distinct ones).

The product of its (nonzero) digits is 8, while the sum is 9.

Adding to 20022100101 its reverse (10100122002), we get a palindrome (30122222103).

The spelling of 20022100101 in words is "twenty billion, twenty-two million, one hundred thousand, one hundred one".