210101121211222 has 16 divisors (see below), whose sum is σ = 317741645426832. Its totient is φ = 104190528245760.

The previous prime is 210101121211147. The next prime is 210101121211229. The reversal of 210101121211222 is 222112121101012.

It is a happy number.

It is a super-2 number, since 2×210101121211222² (a number of 29 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 210101121211222.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (210101121211229) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 822082843 + ... + 822338374.

It is an arithmetic number, because the mean of its divisors is an integer number (19858852839177).

Almost surely, 2^{210101121211222} is an apocalyptic number.

210101121211222 is a deficient number, since it is larger than the sum of its proper divisors (107640524215610).

210101121211222 is a wasteful number, since it uses less digits than its factorization.

210101121211222 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1644421743.

The product of its (nonzero) digits is 64, while the sum is 19.

Adding to 210101121211222 its reverse (222112121101012), we get a palindrome (432213242312234).

The spelling of 210101121211222 in words is "two hundred ten trillion, one hundred one billion, one hundred twenty-one million, two hundred eleven thousand, two hundred twenty-two".