10212222121211 has 16 divisors (see below), whose sum is σ = 11441602425600. Its totient is φ = 9036123804000.

The previous prime is 10212222121207. The next prime is 10212222121261. The reversal of 10212222121211 is 11212122221201.

It is a cyclic number.

It is not a de Polignac number, because 10212222121211 - 2² = 10212222121207 is a prime.

It is a super-2 number, since 2×10212222121211² (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 (10212222121201) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 77832071 + ... + 77963168.

It is an arithmetic number, because the mean of its divisors is an integer number (715100151600).

Almost surely, 2^{10212222121211} is an apocalyptic number.

10212222121211 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

10212222121211 is a deficient number, since it is larger than the sum of its proper divisors (1229380304389).

10212222121211 is a wasteful number, since it uses less digits than its factorization.

10212222121211 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 155795410.

The product of its (nonzero) digits is 128, while the sum is 20.

Adding to 10212222121211 its reverse (11212122221201), we get a palindrome (21424344342412).

The spelling of 10212222121211 in words is "ten trillion, two hundred twelve billion, two hundred twenty-two million, one hundred twenty-one thousand, two hundred eleven".