20122112122 has 8 divisors (see below), whose sum is σ = 34495049376. Its totient is φ = 8623762332.

The previous prime is 20122112119. The next prime is 20122112123. The reversal of 20122112122 is 22121122102.

It is a happy number.

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

It is a junction number, because it is equal to n+sod(n) for n = 20122112096 and 20122112105.

It is not an unprimeable number, because it can be changed into a prime (20122112123) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 718646848 + ... + 718646875.

It is an arithmetic number, because the mean of its divisors is an integer number (4311881172).

Almost surely, 2^20122112122 is an apocalyptic number.

20122112122 is a deficient number, since it is larger than the sum of its proper divisors (14372937254).

20122112122 is a wasteful number, since it uses less digits than its factorization.

20122112122 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1437293732.

The product of its (nonzero) digits is 64, while the sum is 16.

Adding to 20122112122 its reverse (22121122102), we get a palindrome (42243234224).

The spelling of 20122112122 in words is "twenty billion, one hundred twenty-two million, one hundred twelve thousand, one hundred twenty-two".