210101701212 has 36 divisors (see below), whose sum is σ = 571943521240. Its totient is φ = 64646677152.

The previous prime is 210101701193. The next prime is 210101701267. The reversal of 210101701212 is 212107101012.

It is a tau number, because it is divible by the number of its divisors (36).

It is a Harshad number since it is a multiple of its sum of digits (18).

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 in 11 ways as a sum of consecutive naturals, for example, 224467162 + ... + 224468097.

Almost surely, 2^210101701212 is an apocalyptic number.

It is an amenable number.

210101701212 is an abundant number, since it is smaller than the sum of its proper divisors (361841820028).

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

210101701212 is a wasteful number, since it uses less digits than its factorization.

210101701212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 448935282 (or 448935277 counting only the distinct ones).

The product of its (nonzero) digits is 56, while the sum is 18.

Adding to 210101701212 its reverse (212107101012), we get a palindrome (422208802224).

The spelling of 210101701212 in words is "two hundred ten billion, one hundred one million, seven hundred one thousand, two hundred twelve".