212102021221202 has 16 divisors (see below), whose sum is σ = 363617341985472. Its totient is φ = 90897396978960.

The previous prime is 212102021221201. The next prime is 212102021221249. The reversal of 212102021221202 is 202122120201212.

It is a super-2 number, since 2×212102021221202² (a number of 29 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (212102021221201) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 288724949 + ... + 289458632.

It is an arithmetic number, because the mean of its divisors is an integer number (22726083874092).

Almost surely, 2^{212102021221202} is an apocalyptic number.

212102021221202 is a deficient number, since it is larger than the sum of its proper divisors (151515320764270).

212102021221202 is a wasteful number, since it uses less digits than its factorization.

212102021221202 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 578209793.

The product of its (nonzero) digits is 256, while the sum is 20.

Adding to 212102021221202 its reverse (202122120201212), we get a palindrome (414224141422414).

The spelling of 212102021221202 in words is "two hundred twelve trillion, one hundred two billion, twenty-one million, two hundred twenty-one thousand, two hundred two".