210201221211012 has 18 divisors (see below), whose sum is σ = 531341975839038. Its totient is φ = 70067073736992.

The previous prime is 210201221211001. The next prime is 210201221211029. The reversal of 210201221211012 is 210112122102012.

210201221211012 is a `hidden beast` number, since 21 + 0 + 201 + 221 + 211 + 0 + 12 = 666.

210201221211012 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in only one way, i.e., 132081325816896 + 78119895394116 = 11492664^2 + 8838546^2 .

It is a tau number, because it is divible by the number of its divisors (18).

It is a super-2 number, since 2×210201221211012² (a number of 29 digits) contains 22 as substring.

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

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 2919461405673 + ... + 2919461405744.

Almost surely, 2^{210201221211012} is an apocalyptic number.

It is an amenable number.

210201221211012 is an abundant number, since it is smaller than the sum of its proper divisors (321140754628026).

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

210201221211012 is a wasteful number, since it uses less digits than its factorization.

210201221211012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5838922811427 (or 5838922811422 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 18.

Adding to 210201221211012 its reverse (210112122102012), we get a palindrome (420313343313024).

The spelling of 210201221211012 in words is "two hundred ten trillion, two hundred one billion, two hundred twenty-one million, two hundred eleven thousand, twelve".