121121022011 has 8 divisors (see below), whose sum is σ = 132510630000. Its totient is φ = 109794515040.

The previous prime is 121121021981. The next prime is 121121022013. The reversal of 121121022011 is 110220121121.

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 121121022011 - 2¹⁴ = 121121005627 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (121121022013) 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, 15771236 + ... + 15778913.

It is an arithmetic number, because the mean of its divisors is an integer number (16563828750).

Almost surely, 2^121121022011 is an apocalyptic number.

121121022011 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

121121022011 is a deficient number, since it is larger than the sum of its proper divisors (11389607989).

121121022011 is a wasteful number, since it uses less digits than its factorization.

121121022011 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 31550509.

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

Adding to 121121022011 its reverse (110220121121), we get a palindrome (231341143132).

The spelling of 121121022011 in words is "one hundred twenty-one billion, one hundred twenty-one million, twenty-two thousand, eleven".