20010122106 has 16 divisors (see below), whose sum is σ = 43098724704. Its totient is φ = 6156960624.

The previous prime is 20010122101. The next prime is 20010122117. The reversal of 20010122106 is 60122101002.

It is not an unprimeable number, because it can be changed into a prime (20010122101) 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, 128269936 + ... + 128270091.

It is an arithmetic number, because the mean of its divisors is an integer number (2693670294).

Almost surely, 2^20010122106 is an apocalyptic number.

20010122106 is a gapful number since it is divisible by the number (26) formed by its first and last digit.

20010122106 is an abundant number, since it is smaller than the sum of its proper divisors (23088602598).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

20010122106 is a wasteful number, since it uses less digits than its factorization.

20010122106 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 256540045.

The product of its (nonzero) digits is 48, while the sum is 15.

Adding to 20010122106 its reverse (60122101002), we get a palindrome (80132223108).

The spelling of 20010122106 in words is "twenty billion, ten million, one hundred twenty-two thousand, one hundred six".