210001212222112 has 12 divisors (see below), whose sum is σ = 413439886562346. Its totient is φ = 105000606111040.

The previous prime is 210001212222107. The next prime is 210001212222133. The reversal of 210001212222112 is 211222212100012.

It can be written as a sum of positive squares in only one way, i.e., 134369734505616 + 75631477716496 = 11591796^2 + 8696636^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 210001212222112.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3281268940939 + ... + 3281268941002.

Almost surely, 2^{210001212222112} is an apocalyptic number.

It is an amenable number.

210001212222112 is a deficient number, since it is larger than the sum of its proper divisors (203438674340234).

210001212222112 is an equidigital number, since it uses as much as digits as its factorization.

210001212222112 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6562537881951 (or 6562537881943 counting only the distinct ones).

The product of its (nonzero) digits is 128, while the sum is 19.

Adding to 210001212222112 its reverse (211222212100012), we get a palindrome (421223424322124).

The spelling of 210001212222112 in words is "two hundred ten trillion, one billion, two hundred twelve million, two hundred twenty-two thousand, one hundred twelve".