20210010122 has 4 divisors (see below), whose sum is σ = 30315015186. Its totient is φ = 10105005060.

The previous prime is 20210010113. The next prime is 20210010221. The reversal of 20210010122 is 22101001202.

It is a happy number.

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., 20200652641 + 9357481 = 142129^2 + 3059^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5052502529 + ... + 5052502532.

Almost surely, 2^20210010122 is an apocalyptic number.

20210010122 is a deficient number, since it is larger than the sum of its proper divisors (10105005064).

20210010122 is a wasteful number, since it uses less digits than its factorization.

20210010122 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10105005063.

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

Adding to 20210010122 its reverse (22101001202), we get a palindrome (42311011324).

The spelling of 20210010122 in words is "twenty billion, two hundred ten million, ten thousand, one hundred twenty-two".