1200212010101 has 8 divisors (see below), whose sum is σ = 1324061280024. Its totient is φ = 1080866350080.

The previous prime is 1200212010091. The next prime is 1200212010157. The reversal of 1200212010101 is 1010102120021.

It can be written as a sum of positive squares in 4 ways, for example, as 70955107876 + 1129256902225 = 266374^2 + 1062665^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 1200212010101 - 2²² = 1200207815797 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1200212010301) 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, 1125901916 + ... + 1125902981.

It is an arithmetic number, because the mean of its divisors is an integer number (165507660003).

Almost surely, 2^{1200212010101} is an apocalyptic number.

It is an amenable number.

1200212010101 is a deficient number, since it is larger than the sum of its proper divisors (123849269923).

1200212010101 is a wasteful number, since it uses less digits than its factorization.

1200212010101 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2251804951.

The product of its (nonzero) digits is 8, while the sum is 11.

Adding to 1200212010101 its reverse (1010102120021), we get a palindrome (2210314130122).

The spelling of 1200212010101 in words is "one trillion, two hundred billion, two hundred twelve million, ten thousand, one hundred one".