1201100021110 has 32 divisors (see below), whose sum is σ = 2358711228672. Its totient is φ = 436728912480.

The previous prime is 1201100021063. The next prime is 1201100021111. The reversal of 1201100021110 is 111200011021.

It is a Harshad number since it is a multiple of its sum of digits (10).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1201100021111) 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, 976167 + ... + 1831693.

It is an arithmetic number, because the mean of its divisors is an integer number (73709725896).

Almost surely, 2^{1201100021110} is an apocalyptic number.

1201100021110 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1201100021110 is a deficient number, since it is larger than the sum of its proper divisors (1157611207562).

1201100021110 is a wasteful number, since it uses less digits than its factorization.

1201100021110 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 868308.

The product of its (nonzero) digits is 4, while the sum is 10.

Adding to 1201100021110 its reverse (111200011021), we get a palindrome (1312300032131).

The spelling of 1201100021110 in words is "one trillion, two hundred one billion, one hundred million, twenty-one thousand, one hundred ten".