10212222221001 has 12 divisors (see below), whose sum is σ = 15149662995012. Its totient is φ = 6624144143136.

The previous prime is 10212222220987. The next prime is 10212222221017. The reversal of 10212222221001 is 10012222221201.

It is a happy number.

10212222221001 is a `hidden beast` number, since 10 + 212 + 222 + 221 + 0 + 0 + 1 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 9256958375625 + 955263845376 = 3042525^2 + 977376^2 .

It is not a de Polignac number, because 10212222221001 - 2⁹ = 10212222220489 is a prime.

It is a super-2 number, since 2×10212222221001² (a number of 27 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (10212222221051) 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 11 ways as a sum of consecutive naturals, for example, 15333666666 + ... + 15333667331.

It is an arithmetic number, because the mean of its divisors is an integer number (1262471916251).

Almost surely, 2^{10212222221001} is an apocalyptic number.

It is an amenable number.

10212222221001 is a deficient number, since it is larger than the sum of its proper divisors (4937440774011).

10212222221001 is a wasteful number, since it uses less digits than its factorization.

10212222221001 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 30667334040 (or 30667334037 counting only the distinct ones).

The product of its (nonzero) digits is 128, while the sum is 18.

Adding to 10212222221001 its reverse (10012222221201), we get a palindrome (20224444442202).

The spelling of 10212222221001 in words is "ten trillion, two hundred twelve billion, two hundred twenty-two million, two hundred twenty-one thousand, one".