101210221005 has 16 divisors (see below), whose sum is σ = 161949974400. Its totient is φ = 53974244288.

The previous prime is 101210220941. The next prime is 101210221019. The reversal of 101210221005 is 500122012101.

It is a cyclic number.

It is not a de Polignac number, because 101210221005 - 2⁶ = 101210220941 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (15).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 95457 + ... + 459926.

It is an arithmetic number, because the mean of its divisors is an integer number (10121873400).

Almost surely, 2^101210221005 is an apocalyptic number.

101210221005 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

101210221005 is a deficient number, since it is larger than the sum of its proper divisors (60739753395).

101210221005 is a wasteful number, since it uses less digits than its factorization.

101210221005 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 567540.

The product of its (nonzero) digits is 40, while the sum is 15.

Adding to 101210221005 its reverse (500122012101), we get a palindrome (601332233106).

The spelling of 101210221005 in words is "one hundred one billion, two hundred ten million, two hundred twenty-one thousand, five".