121000213011 has 16 divisors (see below), whose sum is σ = 166005171360. Its totient is φ = 78361171200.

The previous prime is 121000213001. The next prime is 121000213109. The reversal of 121000213011 is 110312000121.

It is not a de Polignac number, because 121000213011 - 2¹¹ = 121000210963 is a prime.

It is a super-2 number, since 2×121000213011² (a number of 23 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (121000213001) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3751306 + ... + 3783423.

It is an arithmetic number, because the mean of its divisors is an integer number (10375323210).

Almost surely, 2^121000213011 is an apocalyptic number.

121000213011 is a deficient number, since it is larger than the sum of its proper divisors (45004958349).

121000213011 is a wasteful number, since it uses less digits than its factorization.

121000213011 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7534886.

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

Adding to 121000213011 its reverse (110312000121), we get a palindrome (231312213132).

The spelling of 121000213011 in words is "one hundred twenty-one billion, two hundred thirteen thousand, eleven".