1201110121210 has 16 divisors (see below), whose sum is σ = 2214729882792. Its totient is φ = 468725900800.

The previous prime is 1201110121207. The next prime is 1201110121217. The reversal of 1201110121210 is 121210111021.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 219847516641 + 981262604569 = 468879^2 + 990587^2 .

It is not an unprimeable number, because it can be changed into a prime (1201110121217) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1464768031 + ... + 1464768850.

Almost surely, 2^{1201110121210} is an apocalyptic number.

1201110121210 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1201110121210 is a deficient number, since it is larger than the sum of its proper divisors (1013619761582).

1201110121210 is a wasteful number, since it uses less digits than its factorization.

1201110121210 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2929536929.

The product of its (nonzero) digits is 8, while the sum is 13.

Adding to 1201110121210 its reverse (121210111021), we get a palindrome (1322320232231).

The spelling of 1201110121210 in words is "one trillion, two hundred one billion, one hundred ten million, one hundred twenty-one thousand, two hundred ten".