10222222121211 has 4 divisors (see below), whose sum is σ = 13629629494952. Its totient is φ = 6814814747472.

The previous prime is 10222222121113. The next prime is 10222222121227. The reversal of 10222222121211 is 11212122222201.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 10222222121211 - 2¹⁷ = 10222221990139 is a prime.

It is a super-2 number, since 2×10222222121211² (a number of 27 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (10222222121261) 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 3 ways as a sum of consecutive naturals, for example, 1703703686866 + ... + 1703703686871.

It is an arithmetic number, because the mean of its divisors is an integer number (3407407373738).

Almost surely, 2^{10222222121211} is an apocalyptic number.

10222222121211 is a deficient number, since it is larger than the sum of its proper divisors (3407407373741).

10222222121211 is an equidigital number, since it uses as much as digits as its factorization.

10222222121211 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3407407373740.

The product of its (nonzero) digits is 256, while the sum is 21.

Adding to 10222222121211 its reverse (11212122222201), we get a palindrome (21434344343412).

The spelling of 10222222121211 in words is "ten trillion, two hundred twenty-two billion, two hundred twenty-two million, one hundred twenty-one thousand, two hundred eleven".