101220111092 has 12 divisors (see below), whose sum is σ = 186458099520. Its totient is φ = 47946368376.

The previous prime is 101220111089. The next prime is 101220111107. The reversal of 101220111092 is 290111022101.

It is a congruent number.

It is an unprimeable number.

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, 665921708 + ... + 665921859.

It is an arithmetic number, because the mean of its divisors is an integer number (15538174960).

Almost surely, 2^101220111092 is an apocalyptic number.

It is an amenable number.

101220111092 is a deficient number, since it is larger than the sum of its proper divisors (85237988428).

101220111092 is a wasteful number, since it uses less digits than its factorization.

101220111092 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1331843590 (or 1331843588 counting only the distinct ones).

The product of its (nonzero) digits is 72, while the sum is 20.

Adding to 101220111092 its reverse (290111022101), we get a palindrome (391331133193).

The spelling of 101220111092 in words is "one hundred one billion, two hundred twenty million, one hundred eleven thousand, ninety-two".