201211002111210 has 64 divisors (see below), whose sum is σ = 594346344705792. Its totient is φ = 42453310334976.

The previous prime is 201211002111173. The next prime is 201211002111211. The reversal of 201211002111210 is 12111200112102.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (15).

It is a self number, because there is not a number n which added to its sum of digits gives 201211002111210.

It is not an unprimeable number, because it can be changed into a prime (201211002111211) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 36851829159 + ... + 36851834618.

It is an arithmetic number, because the mean of its divisors is an integer number (9286661636028).

Almost surely, 2^{201211002111210} is an apocalyptic number.

201211002111210 is an abundant number, since it is smaller than the sum of its proper divisors (393135342594582).

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

201211002111210 is a wasteful number, since it uses less digits than its factorization.

201211002111210 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 73703663807.

The product of its (nonzero) digits is 16, while the sum is 15.

Adding to 201211002111210 its reverse (12111200112102), we get a palindrome (213322202223312).

The spelling of 201211002111210 in words is "two hundred one trillion, two hundred eleven billion, two million, one hundred eleven thousand, two hundred ten".