121221200001011 has 8 divisors (see below), whose sum is σ = 135466706875248. Its totient is φ = 107513259424000.

The previous prime is 121221200000909. The next prime is 121221200001023. The reversal of 121221200001011 is 110100002122121.

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 121221200001011 - 2⁴² = 116823153489907 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (121221200001211) 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, 134391573830 + ... + 134391574731.

It is an arithmetic number, because the mean of its divisors is an integer number (16933338359406).

Almost surely, 2^{121221200001011} is an apocalyptic number.

121221200001011 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

121221200001011 is a deficient number, since it is larger than the sum of its proper divisors (14245506874237).

121221200001011 is a wasteful number, since it uses less digits than its factorization.

121221200001011 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 268783148613.

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

Adding to 121221200001011 its reverse (110100002122121), we get a palindrome (231321202123132).

The spelling of 121221200001011 in words is "one hundred twenty-one trillion, two hundred twenty-one billion, two hundred million, one thousand, eleven".