101221003331 has 16 divisors (see below), whose sum is σ = 116549394624. Its totient is φ = 86112059904.

The previous prime is 101221003307. The next prime is 101221003337. The reversal of 101221003331 is 133300122101.

It is a cyclic number.

It is not a de Polignac number, because 101221003331 - 2¹⁰ = 101221002307 is a prime.

It is a super-2 number, since 2×101221003331² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (101221003337) by changing a digit.

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, 411365 + ... + 609641.

It is an arithmetic number, because the mean of its divisors is an integer number (7284337164).

Almost surely, 2^101221003331 is an apocalyptic number.

101221003331 is a deficient number, since it is larger than the sum of its proper divisors (15328391293).

101221003331 is a wasteful number, since it uses less digits than its factorization.

101221003331 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 198830.

The product of its (nonzero) digits is 108, while the sum is 17.

Adding to 101221003331 its reverse (133300122101), we get a palindrome (234521125432).

The spelling of 101221003331 in words is "one hundred one billion, two hundred twenty-one million, three thousand, three hundred thirty-one".