121212201011 has 8 divisors (see below), whose sum is σ = 132391009200. Its totient is φ = 110059979040.

The previous prime is 121212200983. The next prime is 121212201079. The reversal of 121212201011 is 110102212121.

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

It is not a de Polignac number, because 121212201011 - 2²² = 121208006707 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (121212201091) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6637016 + ... + 6655253.

It is an arithmetic number, because the mean of its divisors is an integer number (16548876150).

Almost surely, 2^121212201011 is an apocalyptic number.

121212201011 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

121212201011 is a deficient number, since it is larger than the sum of its proper divisors (11178808189).

121212201011 is a wasteful number, since it uses less digits than its factorization.

121212201011 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13293109.

The product of its (nonzero) digits is 16, while the sum is 14.

Adding to 121212201011 its reverse (110102212121), we get a palindrome (231314413132).

It can be divided in two parts, 121212 and 201011, that added together give a palindrome (322223).

The spelling of 121212201011 in words is "one hundred twenty-one billion, two hundred twelve million, two hundred one thousand, eleven".