211222220020010 has 8 divisors (see below), whose sum is σ = 380199996036036. Its totient is φ = 84488888008000.

The previous prime is 211222220019983. The next prime is 211222220020013. The reversal of 211222220020010 is 10020022222112.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 189064177503721 + 22158042516289 = 13750061^2 + 4707233^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a super-2 number, since 2×211222220020010² (a number of 29 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (211222220020013) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 10561111000991 + ... + 10561111001010.

Almost surely, 2^{211222220020010} is an apocalyptic number.

211222220020010 is a deficient number, since it is larger than the sum of its proper divisors (168977776016026).

211222220020010 is a wasteful number, since it uses less digits than its factorization.

211222220020010 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21122222002008.

The product of its (nonzero) digits is 128, while the sum is 17.

Adding to 211222220020010 its reverse (10020022222112), we get a palindrome (221242242242122).

The spelling of 211222220020010 in words is "two hundred eleven trillion, two hundred twenty-two billion, two hundred twenty million, twenty thousand, ten".