1200101020110 has 32 divisors (see below), whose sum is σ = 3200269387680. Its totient is φ = 320026938624.

The previous prime is 1200101020057. The next prime is 1200101020117. The reversal of 1200101020110 is 110201010021.

It is a happy number.

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

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 1200101020092 and 1200101020101.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1200101020117) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2222409027 + ... + 2222409566.

It is an arithmetic number, because the mean of its divisors is an integer number (100008418365).

Almost surely, 2^{1200101020110} is an apocalyptic number.

1200101020110 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1200101020110 is an abundant number, since it is smaller than the sum of its proper divisors (2000168367570).

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

1200101020110 is a wasteful number, since it uses less digits than its factorization.

1200101020110 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4444818609 (or 4444818603 counting only the distinct ones).

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

Adding to 1200101020110 its reverse (110201010021), we get a palindrome (1310302030131).

The spelling of 1200101020110 in words is "one trillion, two hundred billion, one hundred one million, twenty thousand, one hundred ten".