201212222310 has 160 divisors (see below), whose sum is σ = 590531733792. Its totient is φ = 48753169920.

The previous prime is 201212222287. The next prime is 201212222329. The reversal of 201212222310 is 13222212102.

201212222310 is a `hidden beast` number, since 201 + 212 + 22 + 231 + 0 = 666.

It is a super-2 number, since 2×201212222310² (a number of 23 digits) contains 22 as substring.

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 (23) of ones.

It is a polite number, since it can be written in 79 ways as a sum of consecutive naturals, for example, 21316912 + ... + 21326348.

Almost surely, 2^201212222310 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 201212222310, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (295265866896).

201212222310 is an abundant number, since it is smaller than the sum of its proper divisors (389319511482).

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

201212222310 is a wasteful number, since it uses less digits than its factorization.

201212222310 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11860 (or 11851 counting only the distinct ones).

The product of its (nonzero) digits is 192, while the sum is 18.

Adding to 201212222310 its reverse (13222212102), we get a palindrome (214434434412).

The spelling of 201212222310 in words is "two hundred one billion, two hundred twelve million, two hundred twenty-two thousand, three hundred ten".