210001022012 has 24 divisors (see below), whose sum is σ = 370987448496. Its totient is φ = 104005778688.

The previous prime is 210001021987. The next prime is 210001022039. The reversal of 210001022012 is 210220100012.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 210001021984 and 210001022002.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 576383 + ... + 867305.

It is an arithmetic number, because the mean of its divisors is an integer number (15457810354).

Almost surely, 2^210001022012 is an apocalyptic number.

It is an amenable number.

210001022012 is a deficient number, since it is larger than the sum of its proper divisors (160986426484).

210001022012 is a wasteful number, since it uses less digits than its factorization.

210001022012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 292637 (or 292635 counting only the distinct ones).

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

Adding to 210001022012 its reverse (210220100012), we get a palindrome (420221122024).

The spelling of 210001022012 in words is "two hundred ten billion, one million, twenty-two thousand, twelve".