22120202121210 has 64 divisors (see below), whose sum is σ = 58988532096000. Its totient is φ = 5898587921856.

The previous prime is 22120202121203. The next prime is 22120202121217. The reversal of 22120202121210 is 1212120202122.

It is a happy number.

22120202121210 is a `hidden beast` number, since 221 + 2 + 0 + 20 + 212 + 1 + 210 = 666.

It is an interprime number because it is at equal distance from previous prime (22120202121203) and next prime (22120202121217).

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 (22120202121217) 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 31 ways as a sum of consecutive naturals, for example, 11413392 + ... + 13210068.

It is an arithmetic number, because the mean of its divisors is an integer number (921695814000).

Almost surely, 2^{22120202121210} is an apocalyptic number.

22120202121210 is an abundant number, since it is smaller than the sum of its proper divisors (36868329974790).

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

22120202121210 is a wasteful number, since it uses less digits than its factorization.

22120202121210 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1842292 (or 1842286 counting only the distinct ones).

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

Adding to 22120202121210 its reverse (1212120202122), we get a palindrome (23332322323332).

The spelling of 22120202121210 in words is "twenty-two trillion, one hundred twenty billion, two hundred two million, one hundred twenty-one thousand, two hundred ten".