212102221121202 has 32 divisors (see below), whose sum is σ = 438569465241600. Its totient is φ = 68313663714960.

The previous prime is 212102221121173. The next prime is 212102221121209. The reversal of 212102221121202 is 202121122201212.

It is a super-4 number, since 4×212102221121202⁴ (a number of 58 digits) contains 4444 as substring.

It is not an unprimeable number, because it can be changed into a prime (212102221121209) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 886610202 + ... + 886849397.

It is an arithmetic number, because the mean of its divisors is an integer number (13705295788800).

Almost surely, 2^{212102221121202} is an apocalyptic number.

212102221121202 is an abundant number, since it is smaller than the sum of its proper divisors (226467244120398).

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

212102221121202 is a wasteful number, since it uses less digits than its factorization.

212102221121202 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1773460278.

The product of its (nonzero) digits is 256, while the sum is 21.

Adding to 212102221121202 its reverse (202121122201212), we get a palindrome (414223343322414).

The spelling of 212102221121202 in words is "two hundred twelve trillion, one hundred two billion, two hundred twenty-one million, one hundred twenty-one thousand, two hundred two".