10221201101231 has 2 divisors, whose sum is σ = 10221201101232. Its totient is φ = 10221201101230.

The previous prime is 10221201101227. The next prime is 10221201101303. The reversal of 10221201101231 is 13210110212201.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 10221201101231 - 2² = 10221201101227 is a prime.

It is a super-2 number, since 2×10221201101231² (a number of 27 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (10221201101131) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5110600550615 + 5110600550616.

It is an arithmetic number, because the mean of its divisors is an integer number (5110600550616).

Almost surely, 2^{10221201101231} is an apocalyptic number.

10221201101231 is a deficient number, since it is larger than the sum of its proper divisors (1).

10221201101231 is an equidigital number, since it uses as much as digits as its factorization.

10221201101231 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 10221201101231 its reverse (13210110212201), we get a palindrome (23431311313432).

The spelling of 10221201101231 in words is "ten trillion, two hundred twenty-one billion, two hundred one million, one hundred one thousand, two hundred thirty-one".