10221221010131 has 2 divisors, whose sum is σ = 10221221010132. Its totient is φ = 10221221010130.

The previous prime is 10221221010101. The next prime is 10221221010181. The reversal of 10221221010131 is 13101012212201.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-10221221010131 is a prime.

It is a super-2 number, since 2×10221221010131² (a number of 27 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (10221221010101) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5110610505065 + 5110610505066.

It is an arithmetic number, because the mean of its divisors is an integer number (5110610505066).

Almost surely, 2^{10221221010131} is an apocalyptic number.

10221221010131 is a deficient number, since it is larger than the sum of its proper divisors (1).

10221221010131 is an equidigital number, since it uses as much as digits as its factorization.

10221221010131 is an evil number, because the sum of its binary digits is even.

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

Adding to 10221221010131 its reverse (13101012212201), we get a palindrome (23322233222332).

The spelling of 10221221010131 in words is "ten trillion, two hundred twenty-one billion, two hundred twenty-one million, ten thousand, one hundred thirty-one".