20001022100122 has 16 divisors (see below), whose sum is σ = 34934399788032. Its totient is φ = 8410133281680.

The previous prime is 20001022100113. The next prime is 20001022100149. The reversal of 20001022100122 is 22100122010002.

It is a happy number.

It is a super-3 number, since 3×20001022100122³ (a number of 41 digits) contains 333 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 13477776954 + ... + 13477778437.

It is an arithmetic number, because the mean of its divisors is an integer number (2183399986752).

Almost surely, 2^{20001022100122} is an apocalyptic number.

20001022100122 is a deficient number, since it is larger than the sum of its proper divisors (14933377687910).

20001022100122 is a wasteful number, since it uses less digits than its factorization.

20001022100122 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 26955555453.

The product of its (nonzero) digits is 32, while the sum is 13.

Adding to 20001022100122 its reverse (22100122010002), we get a palindrome (42101144110124).

The spelling of 20001022100122 in words is "twenty trillion, one billion, twenty-two million, one hundred thousand, one hundred twenty-two".