20112210122 has 4 divisors (see below), whose sum is σ = 30168315186. Its totient is φ = 10056105060.

The previous prime is 20112210119. The next prime is 20112210127. The reversal of 20112210122 is 22101221102.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 15672786481 + 4439423641 = 125191^2 + 66629^2 .

It is a junction number, because it is equal to n+sod(n) for n = 20112210097 and 20112210106.

It is not an unprimeable number, because it can be changed into a prime (20112210127) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5028052529 + ... + 5028052532.

Almost surely, 2^20112210122 is an apocalyptic number.

20112210122 is a deficient number, since it is larger than the sum of its proper divisors (10056105064).

20112210122 is a wasteful number, since it uses less digits than its factorization.

20112210122 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10056105063.

The product of its (nonzero) digits is 32, while the sum is 14.

Adding to 20112210122 its reverse (22101221102), we get a palindrome (42213431224).

The spelling of 20112210122 in words is "twenty billion, one hundred twelve million, two hundred ten thousand, one hundred twenty-two".