121013211 has 16 divisors (see below), whose sum is σ = 178001280. Its totient is φ = 72515520.

The previous prime is 121013197. The next prime is 121013219. The reversal of 121013211 is 112310121.

It is not a de Polignac number, because 121013211 - 2⁷ = 121013083 is a prime.

It is not an unprimeable number, because it can be changed into a prime (121013219) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 17665 + ... + 23538.

It is an arithmetic number, because the mean of its divisors is an integer number (11125080).

Almost surely, 2^121013211 is an apocalyptic number.

121013211 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

121013211 is a deficient number, since it is larger than the sum of its proper divisors (56988069).

121013211 is a wasteful number, since it uses less digits than its factorization.

121013211 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 41306.

The product of its (nonzero) digits is 12, while the sum is 12.

The square root of 121013211 is about 11000.6004836100. The cubic root of 121013211 is about 494.6267444305.

Adding to 121013211 its reverse (112310121), we get a palindrome (233323332).

The spelling of 121013211 in words is "one hundred twenty-one million, thirteen thousand, two hundred eleven".