210002112122 has 24 divisors (see below), whose sum is σ = 359230304160. Its totient is φ = 91305261080.

The previous prime is 210002112101. The next prime is 210002112127. The reversal of 210002112122 is 221211200012.

It is a junction number, because it is equal to n+sod(n) for n = 210002112097 and 210002112106.

It is not an unprimeable number, because it can be changed into a prime (210002112127) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 9010622 + ... + 9033897.

It is an arithmetic number, because the mean of its divisors is an integer number (14967929340).

Almost surely, 2^210002112122 is an apocalyptic number.

210002112122 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

210002112122 is a deficient number, since it is larger than the sum of its proper divisors (149228192038).

210002112122 is a wasteful number, since it uses less digits than its factorization.

210002112122 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18044578 (or 18044555 counting only the distinct ones).

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

Adding to 210002112122 its reverse (221211200012), we get a palindrome (431213312134).

The spelling of 210002112122 in words is "two hundred ten billion, two million, one hundred twelve thousand, one hundred twenty-two".