121010010212021 has 16 divisors (see below), whose sum is σ = 144420996964608. Its totient is φ = 99136916736000.

The previous prime is 121010010212009. The next prime is 121010010212029. The reversal of 121010010212021 is 120212010010121.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-121010010212021 is a prime.

It is a super-3 number, since 3×121010010212021³ (a number of 43 digits) contains 333 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 121010010211987 and 121010010212005.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (121010010212029) 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, 288651020 + ... + 289069941.

It is an arithmetic number, because the mean of its divisors is an integer number (9026312310288).

Almost surely, 2^{121010010212021} is an apocalyptic number.

It is an amenable number.

121010010212021 is a deficient number, since it is larger than the sum of its proper divisors (23410986752587).

121010010212021 is a wasteful number, since it uses less digits than its factorization.

121010010212021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 577722292.

The product of its (nonzero) digits is 16, while the sum is 14.

Adding to 121010010212021 its reverse (120212010010121), we get a palindrome (241222020222142).

The spelling of 121010010212021 in words is "one hundred twenty-one trillion, ten billion, ten million, two hundred twelve thousand, twenty-one".