2012211221202 has 192 divisors, whose sum is σ = 5566348569600. Its totient is φ = 530529528384.

The previous prime is 2012211221191. The next prime is 2012211221203. The reversal of 2012211221202 is 2021221122102.

It is a happy number.

2012211221202 is a `hidden beast` number, since 20 + 1 + 221 + 1 + 221 + 202 = 666.

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

It is not an unprimeable number, because it can be changed into a prime (2012211221203) by changing a digit.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 225503913 + ... + 225512835.

It is an arithmetic number, because the mean of its divisors is an integer number (28991398800).

Almost surely, 2^{2012211221202} is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2012211221202, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2783174284800).

2012211221202 is an abundant number, since it is smaller than the sum of its proper divisors (3554137348398).

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

2012211221202 is a wasteful number, since it uses less digits than its factorization.

2012211221202 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14059 (or 14047 counting only the distinct ones).

The product of its (nonzero) digits is 128, while the sum is 18.

Adding to 2012211221202 its reverse (2021221122102), we get a palindrome (4033432343304).

The spelling of 2012211221202 in words is "two trillion, twelve billion, two hundred eleven million, two hundred twenty-one thousand, two hundred two".