121000011213 has 16 divisors (see below), whose sum is σ = 163317889152. Its totient is φ = 79678200000.

The previous prime is 121000011203. The next prime is 121000011227. The reversal of 121000011213 is 312110000121.

It is not a de Polignac number, because 121000011213 - 2¹³ = 121000003021 is a prime.

It is a super-2 number, since 2×121000011213² (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (121000011203) 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, 346713 + ... + 601838.

It is an arithmetic number, because the mean of its divisors is an integer number (10207368072).

Almost surely, 2^121000011213 is an apocalyptic number.

It is an amenable number.

121000011213 is a deficient number, since it is larger than the sum of its proper divisors (42317877939).

121000011213 is a wasteful number, since it uses less digits than its factorization.

121000011213 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 949076.

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

Adding to 121000011213 its reverse (312110000121), we get a palindrome (433110011334).

The spelling of 121000011213 in words is "one hundred twenty-one billion, eleven thousand, two hundred thirteen".