22120212211002 has 80 divisors (see below), whose sum is σ = 50464029236544. Its totient is φ = 7240590000000.

The previous prime is 22120212210893. The next prime is 22120212211033. The reversal of 22120212211002 is 20011221202122.

It is a happy number.

22120212211002 is a `hidden beast` number, since 221 + 20 + 212 + 211 + 0 + 0 + 2 = 666.

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

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 943999 + ... + 6718002.

Almost surely, 2^{22120212211002} is an apocalyptic number.

22120212211002 is an abundant number, since it is smaller than the sum of its proper divisors (28343817025542).

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

22120212211002 is a wasteful number, since it uses less digits than its factorization.

22120212211002 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7662337 (or 7662328 counting only the distinct ones).

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

Adding to 22120212211002 its reverse (20011221202122), we get a palindrome (42131433413124).

The spelling of 22120212211002 in words is "twenty-two trillion, one hundred twenty billion, two hundred twelve million, two hundred eleven thousand, two".