20010022101 has 24 divisors (see below), whose sum is σ = 29598192000. Its totient is φ = 13023122112.

The previous prime is 20010022099. The next prime is 20010022117. The reversal of 20010022101 is 10122001002.

It is not a de Polignac number, because 20010022101 - 2¹ = 20010022099 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 (20010022141) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 94831 + ... + 221388.

It is an arithmetic number, because the mean of its divisors is an integer number (1233258000).

Almost surely, 2^20010022101 is an apocalyptic number.

It is an amenable number.

20010022101 is a deficient number, since it is larger than the sum of its proper divisors (9588169899).

20010022101 is a wasteful number, since it uses less digits than its factorization.

20010022101 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 316393 (or 316390 counting only the distinct ones).

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

Adding to 20010022101 its reverse (10122001002), we get a palindrome (30132023103).

The spelling of 20010022101 in words is "twenty billion, ten million, twenty-two thousand, one hundred one".