20122121122 has 32 divisors (see below), whose sum is σ = 31692415104. Its totient is φ = 9573168000.

The previous prime is 20122121101. The next prime is 20122121141. The reversal of 20122121122 is 22112122102.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 20122121096 and 20122121105.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 536763 + ... + 573025.

It is an arithmetic number, because the mean of its divisors is an integer number (990387972).

Almost surely, 2^20122121122 is an apocalyptic number.

20122121122 is a deficient number, since it is larger than the sum of its proper divisors (11570293982).

20122121122 is a wasteful number, since it uses less digits than its factorization.

20122121122 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 36474.

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

Adding to 20122121122 its reverse (22112122102), we get a palindrome (42234243224).

The spelling of 20122121122 in words is "twenty billion, one hundred twenty-two million, one hundred twenty-one thousand, one hundred twenty-two".