121020110213 has 32 divisors (see below), whose sum is σ = 128835563520. Its totient is φ = 113516640000.

The previous prime is 121020110207. The next prime is 121020110219. The reversal of 121020110213 is 312011020121.

It is an interprime number because it is at equal distance from previous prime (121020110207) and next prime (121020110219).

It is a cyclic number.

It is not a de Polignac number, because 121020110213 - 2⁸ = 121020109957 is a prime.

It is a super-3 number, since 3×121020110213³ (a number of 34 digits) contains 333 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (121020110219) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 43735556 + ... + 43738322.

It is an arithmetic number, because the mean of its divisors is an integer number (4026111360).

Almost surely, 2^121020110213 is an apocalyptic number.

It is an amenable number.

121020110213 is a deficient number, since it is larger than the sum of its proper divisors (7815453307).

121020110213 is a wasteful number, since it uses less digits than its factorization.

121020110213 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3189.

The product of its (nonzero) digits is 24, while the sum is 14.

Adding to 121020110213 its reverse (312011020121), we get a palindrome (433031130334).

The spelling of 121020110213 in words is "one hundred twenty-one billion, twenty million, one hundred ten thousand, two hundred thirteen".