20000122112 has 18 divisors (see below), whose sum is σ = 39922119258. Its totient is φ = 10000060928.

The previous prime is 20000122069. The next prime is 20000122123. The reversal of 20000122112 is 21122100002.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 18196930816 + 1803191296 = 134896^2 + 42464^2 .

It is a super-2 number, since 2×20000122112² (a number of 21 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 20000122093 and 20000122102.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 39062483 + ... + 39062994.

Almost surely, 2^20000122112 is an apocalyptic number.

It is an amenable number.

20000122112 is a deficient number, since it is larger than the sum of its proper divisors (19921997146).

20000122112 is an frugal number, since it uses more digits than its factorization.

20000122112 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 78125493 (or 78125479 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 11.

Adding to 20000122112 its reverse (21122100002), we get a palindrome (41122222114).

The spelling of 20000122112 in words is "twenty billion, one hundred twenty-two thousand, one hundred twelve".