210001210022 has 4 divisors (see below), whose sum is σ = 315001815036. Its totient is φ = 105000605010.

The previous prime is 210001209983. The next prime is 210001210049. The reversal of 210001210022 is 220012100012.

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 = 210001209985 and 210001210012.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 52500302504 + ... + 52500302507.

It is an arithmetic number, because the mean of its divisors is an integer number (78750453759).

Almost surely, 2^210001210022 is an apocalyptic number.

210001210022 is a deficient number, since it is larger than the sum of its proper divisors (105000605014).

210001210022 is a wasteful number, since it uses less digits than its factorization.

210001210022 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 105000605013.

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

Adding to 210001210022 its reverse (220012100012), we get a palindrome (430013310034).

The spelling of 210001210022 in words is "two hundred ten billion, one million, two hundred ten thousand, twenty-two".