101201020110 has 40 divisors (see below), whose sum is σ = 272118300696. Its totient is φ = 26986938480.

The previous prime is 101201020061. The next prime is 101201020133. The reversal of 101201020110 is 11020102101.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (9).

It is a junction number, because it is equal to n+sod(n) for n = 101201020092 and 101201020101.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 62468956 + ... + 62470575.

Almost surely, 2^101201020110 is an apocalyptic number.

101201020110 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

101201020110 is an abundant number, since it is smaller than the sum of its proper divisors (170917280586).

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

101201020110 is a wasteful number, since it uses less digits than its factorization.

101201020110 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 124939550 (or 124939541 counting only the distinct ones).

The product of its (nonzero) digits is 4, while the sum is 9.

Adding to 101201020110 its reverse (11020102101), we get a palindrome (112221122211).

The spelling of 101201020110 in words is "one hundred one billion, two hundred one million, twenty thousand, one hundred ten".