101211221082 has 8 divisors (see below), whose sum is σ = 202422442176. Its totient is φ = 33737073692.

The previous prime is 101211221081. The next prime is 101211221119. The reversal of 101211221082 is 280122112101.

It is a sphenic number, since it is the product of 3 distinct primes.

101211221082 is an admirable number.

It is a super-2 number, since 2×101211221082² (a number of 23 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (101211221081) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 8434268418 + ... + 8434268429.

It is an arithmetic number, because the mean of its divisors is an integer number (25302805272).

Almost surely, 2^101211221082 is an apocalyptic number.

101211221082 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

101211221082 is a wasteful number, since it uses less digits than its factorization.

101211221082 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16868536852.

The product of its (nonzero) digits is 128, while the sum is 21.

Adding to 101211221082 its reverse (280122112101), we get a palindrome (381333333183).

The spelling of 101211221082 in words is "one hundred one billion, two hundred eleven million, two hundred twenty-one thousand, eighty-two".