210012021022 has 4 divisors (see below), whose sum is σ = 315018031536. Its totient is φ = 105006010510.

The previous prime is 210012021017. The next prime is 210012021067. The reversal of 210012021022 is 220120210012.

It is a happy number.

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

It is a junction number, because it is equal to n+sod(n) for n = 210012020993 and 210012021011.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 52503005254 + ... + 52503005257.

It is an arithmetic number, because the mean of its divisors is an integer number (78754507884).

Almost surely, 2^210012021022 is an apocalyptic number.

210012021022 is a deficient number, since it is larger than the sum of its proper divisors (105006010514).

210012021022 is a wasteful number, since it uses less digits than its factorization.

210012021022 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 105006010513.

The product of its (nonzero) digits is 32, while the sum is 13.

Adding to 210012021022 its reverse (220120210012), we get a palindrome (430132231034).

The spelling of 210012021022 in words is "two hundred ten billion, twelve million, twenty-one thousand, twenty-two".