101222111000 has 128 divisors (see below), whose sum is σ = 241473960000. Its totient is φ = 39703552000.

The previous prime is 101222110999. The next prime is 101222111033. The reversal of 101222111000 is 111222101.

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 31 ways as a sum of consecutive naturals, for example, 26489090 + ... + 26492910.

Almost surely, 2^101222111000 is an apocalyptic number.

101222111000 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 101222111000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (120736980000).

101222111000 is an abundant number, since it is smaller than the sum of its proper divisors (140251849000).

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

101222111000 is a wasteful number, since it uses less digits than its factorization.

101222111000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4350 (or 4336 counting only the distinct ones).

The product of its (nonzero) digits is 8, while the sum is 11.

Adding to 101222111000 its reverse (111222101), we get a palindrome (101333333101).

The spelling of 101222111000 in words is "one hundred one billion, two hundred twenty-two million, one hundred eleven thousand".