21110010201222 has 32 divisors (see below), whose sum is σ = 42237590693760. Its totient is φ = 7033742089920.

The previous prime is 21110010201209. The next prime is 21110010201223. The reversal of 21110010201222 is 22210201001112.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (21110010201223) by changing a digit.

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 15 ways as a sum of consecutive naturals, for example, 250334538 + ... + 250418850.

It is an arithmetic number, because the mean of its divisors is an integer number (1319924709180).

Almost surely, 2^{21110010201222} is an apocalyptic number.

21110010201222 is an abundant number, since it is smaller than the sum of its proper divisors (21127580492538).

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

21110010201222 is a wasteful number, since it uses less digits than its factorization.

21110010201222 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 101188.

The product of its (nonzero) digits is 32, while the sum is 15.

Adding to 21110010201222 its reverse (22210201001112), we get a palindrome (43320211202334).

The spelling of 21110010201222 in words is "twenty-one trillion, one hundred ten billion, ten million, two hundred one thousand, two hundred twenty-two".