20001001101122 has 8 divisors (see below), whose sum is σ = 30001875933900. Its totient is φ = 10000375789824.

The previous prime is 20001001101119. The next prime is 20001001101127. The reversal of 20001001101122 is 22110110010002.

It can be written as a sum of positive squares in 2 ways, for example, as 19994750459401 + 6250641721 = 4471549^2 + 79061^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is not an unprimeable number, because it can be changed into a prime (20001001101127) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 62179847 + ... + 62500682.

Almost surely, 2^{20001001101122} is an apocalyptic number.

20001001101122 is a deficient number, since it is larger than the sum of its proper divisors (10000874832778).

20001001101122 is a wasteful number, since it uses less digits than its factorization.

20001001101122 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 124760740.

The product of its (nonzero) digits is 8, while the sum is 11.

Adding to 20001001101122 its reverse (22110110010002), we get a palindrome (42111111111124).

The spelling of 20001001101122 in words is "twenty trillion, one billion, one million, one hundred one thousand, one hundred twenty-two".