121213411 has 8 divisors (see below), whose sum is σ = 132320448. Its totient is φ = 110121000.

The previous prime is 121213409. The next prime is 121213429. The reversal of 121213411 is 114312121.

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

It is not a de Polignac number, because 121213411 - 2¹ = 121213409 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (121213471) 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, 20856 + ... + 26026.

It is an arithmetic number, because the mean of its divisors is an integer number (16540056).

Almost surely, 2^121213411 is an apocalyptic number.

121213411 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

121213411 is a deficient number, since it is larger than the sum of its proper divisors (11107037).

121213411 is a wasteful number, since it uses less digits than its factorization.

121213411 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7313.

The product of its digits is 48, while the sum is 16.

The square root of 121213411 is about 11009.6962265087. The cubic root of 121213411 is about 494.8993585143.

Adding to 121213411 its reverse (114312121), we get a palindrome (235525532).

The spelling of 121213411 in words is "one hundred twenty-one million, two hundred thirteen thousand, four hundred eleven".