101211465281 has 2 divisors, whose sum is σ = 101211465282. Its totient is φ = 101211465280.

The previous prime is 101211465239. The next prime is 101211465323. The reversal of 101211465281 is 182564112101.

It is a balanced prime because it is at equal distance from previous prime (101211465239) and next prime (101211465323).

It can be written as a sum of positive squares in only one way, i.e., 86931215281 + 14280250000 = 294841^2 + 119500^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-101211465281 is a prime.

It is a super-2 number, since 2×101211465281² (a number of 23 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (101211465221) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 50605732640 + 50605732641.

It is an arithmetic number, because the mean of its divisors is an integer number (50605732641).

Almost surely, 2^101211465281 is an apocalyptic number.

It is an amenable number.

101211465281 is a deficient number, since it is larger than the sum of its proper divisors (1).

101211465281 is an equidigital number, since it uses as much as digits as its factorization.

101211465281 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 3840, while the sum is 32.

Adding to 101211465281 its reverse (182564112101), we get a palindrome (283775577382).

The spelling of 101211465281 in words is "one hundred one billion, two hundred eleven million, four hundred sixty-five thousand, two hundred eighty-one".