210010001221212 has 12 divisors (see below), whose sum is σ = 490023336182856. Its totient is φ = 70003333740400.

The previous prime is 210010001221177. The next prime is 210010001221219. The reversal of 210010001221212 is 212122100010012.

It is a tau number, because it is divible by the number of its divisors (12).

It is a super-2 number, since 2×210010001221212² (a number of 29 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 210010001221191 and 210010001221200.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (210010001221219) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 8750416717539 + ... + 8750416717562.

It is an arithmetic number, because the mean of its divisors is an integer number (40835278015238).

Almost surely, 2^{210010001221212} is an apocalyptic number.

It is an amenable number.

210010001221212 is an abundant number, since it is smaller than the sum of its proper divisors (280013334961644).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

210010001221212 is a wasteful number, since it uses less digits than its factorization.

210010001221212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17500833435108 (or 17500833435106 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 15.

Adding to 210010001221212 its reverse (212122100010012), we get a palindrome (422132101231224).

The spelling of 210010001221212 in words is "two hundred ten trillion, ten billion, one million, two hundred twenty-one thousand, two hundred twelve".