121010011 has 4 divisors (see below), whose sum is σ = 125182800. Its totient is φ = 116837224.

The previous prime is 121009997. The next prime is 121010033. The reversal of 121010011 is 110010121.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 121010011 - 2¹⁹ = 120485723 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 121009976 and 121010003.

It is not an unprimeable number, because it can be changed into a prime (121014011) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2086351 + ... + 2086408.

It is an arithmetic number, because the mean of its divisors is an integer number (31295700).

Almost surely, 2^121010011 is an apocalyptic number.

121010011 is a deficient number, since it is larger than the sum of its proper divisors (4172789).

121010011 is an equidigital number, since it uses as much as digits as its factorization.

121010011 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4172788.

The product of its (nonzero) digits is 2, while the sum is 7.

The square root of 121010011 is about 11000.4550360428. The cubic root of 121010011 is about 494.6223845221.

Adding to 121010011 its reverse (110010121), we get a palindrome (231020132).

The spelling of 121010011 in words is "one hundred twenty-one million, ten thousand, eleven".