10021221210131 has 2 divisors, whose sum is σ = 10021221210132. Its totient is φ = 10021221210130.

The previous prime is 10021221210127. The next prime is 10021221210139. The reversal of 10021221210131 is 13101212212001.

It is a happy number.

It is a weak prime.

It is an emirp because it is prime and its reverse (13101212212001) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 10021221210131 - 2² = 10021221210127 is a prime.

It is a super-2 number, since 2×10021221210131² (a number of 27 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (10021221210139) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5010610605065 + 5010610605066.

It is an arithmetic number, because the mean of its divisors is an integer number (5010610605066).

Almost surely, 2^{10021221210131} is an apocalyptic number.

10021221210131 is a deficient number, since it is larger than the sum of its proper divisors (1).

10021221210131 is an equidigital number, since it uses as much as digits as its factorization.

10021221210131 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 48, while the sum is 17.

Adding to 10021221210131 its reverse (13101212212001), we get a palindrome (23122433422132).

The spelling of 10021221210131 in words is "ten trillion, twenty-one billion, two hundred twenty-one million, two hundred ten thousand, one hundred thirty-one".