20001121011122 has 32 divisors (see below), whose sum is σ = 32338968742080. Its totient is φ = 9244149258240.

The previous prime is 20001121011121. The next prime is 20001121011133. The reversal of 20001121011122 is 22111012110002.

It is a junction number, because it is equal to n+sod(n) for n = 20001121011097 and 20001121011106.

It is not an unprimeable number, because it can be changed into a prime (20001121011121) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 22715372 + ... + 23579447.

It is an arithmetic number, because the mean of its divisors is an integer number (1010592773190).

Almost surely, 2^{20001121011122} is an apocalyptic number.

20001121011122 is a deficient number, since it is larger than the sum of its proper divisors (12337847730958).

20001121011122 is a wasteful number, since it uses less digits than its factorization.

20001121011122 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 46295066.

The product of its (nonzero) digits is 16, while the sum is 14.

Adding to 20001121011122 its reverse (22111012110002), we get a palindrome (42112133121124).

The spelling of 20001121011122 in words is "twenty trillion, one billion, one hundred twenty-one million, eleven thousand, one hundred twenty-two".