20012122 has 16 divisors (see below), whose sum is σ = 32739840. Its totient is φ = 9118512.

The previous prime is 20012119. The next prime is 20012171. The reversal of 20012122 is 22121002.

It is a junction number, because it is equal to n+sod(n) for n = 20012099 and 20012108.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2818 + ... + 6925.

It is an arithmetic number, because the mean of its divisors is an integer number (2046240).

Almost surely, 2^20012122 is an apocalyptic number.

20012122 is a deficient number, since it is larger than the sum of its proper divisors (12727718).

20012122 is a wasteful number, since it uses less digits than its factorization.

20012122 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9837.

The product of its (nonzero) digits is 16, while the sum is 10.

The square root of 20012122 is about 4473.4910305040. The cubic root of 20012122 is about 271.4965908676.

Adding to 20012122 its reverse (22121002), we get a palindrome (42133124).

The spelling of 20012122 in words is "twenty million, twelve thousand, one hundred twenty-two".