101212344465 has 16 divisors (see below), whose sum is σ = 161944740288. Its totient is φ = 53978254016.

The previous prime is 101212344451. The next prime is 101212344473. The reversal of 101212344465 is 564443212101.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 101212344465 - 2⁴ = 101212344449 is a prime.

It is a super-2 number, since 2×101212344465² (a number of 23 digits) contains 22 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 519982 + ... + 687608.

It is an arithmetic number, because the mean of its divisors is an integer number (10121546268).

Almost surely, 2^101212344465 is an apocalyptic number.

101212344465 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

101212344465 is a deficient number, since it is larger than the sum of its proper divisors (60732395823).

101212344465 is a wasteful number, since it uses less digits than its factorization.

101212344465 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 207888.

The product of its (nonzero) digits is 23040, while the sum is 33.

Adding to 101212344465 its reverse (564443212101), we get a palindrome (665655556566).

The spelling of 101212344465 in words is "one hundred one billion, two hundred twelve million, three hundred forty-four thousand, four hundred sixty-five".