101211221982 has 32 divisors (see below), whose sum is σ = 219197815200. Its totient is φ = 30969855360.

The previous prime is 101211221863. The next prime is 101211222001. The reversal of 101211221982 is 289122112101.

It is a super-2 number, since 2×101211221982² (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3570357 + ... + 3598592.

It is an arithmetic number, because the mean of its divisors is an integer number (6849931725).

Almost surely, 2^101211221982 is an apocalyptic number.

101211221982 is an abundant number, since it is smaller than the sum of its proper divisors (117986593218).

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

101211221982 is a wasteful number, since it uses less digits than its factorization.

101211221982 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7169148.

The product of its (nonzero) digits is 1152, while the sum is 30.

The spelling of 101211221982 in words is "one hundred one billion, two hundred eleven million, two hundred twenty-one thousand, nine hundred eighty-two".