20210200121122 has 12 divisors (see below), whose sum is σ = 33321776233158. Its totient is φ = 9186454600400.

The previous prime is 20210200121113. The next prime is 20210200121143. The reversal of 20210200121122 is 22112100201202.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 20069244176641 + 140955944481 = 4479871^2 + 375441^2 .

It is a junction number, because it is equal to n+sod(n) for n = 20210200121096 and 20210200121105.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 41756611579 + ... + 41756612062.

Almost surely, 2^{20210200121122} is an apocalyptic number.

20210200121122 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

20210200121122 is a deficient number, since it is larger than the sum of its proper divisors (13111576112036).

20210200121122 is a wasteful number, since it uses less digits than its factorization.

20210200121122 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 83513223665 (or 83513223654 counting only the distinct ones).

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

Adding to 20210200121122 its reverse (22112100201202), we get a palindrome (42322300322324).

The spelling of 20210200121122 in words is "twenty trillion, two hundred ten billion, two hundred million, one hundred twenty-one thousand, one hundred twenty-two".