10011002010121 has 4 divisors (see below), whose sum is σ = 11441145154432. Its totient is φ = 8580858865812.

The previous prime is 10011002010059. The next prime is 10011002010131. The reversal of 10011002010121 is 12101020011001.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 10011002010121 - 2¹⁹ = 10011001485833 is a prime.

It is a super-2 number, since 2×10011002010121² (a number of 27 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 10011002010098 and 10011002010107.

It is not an unprimeable number, because it can be changed into a prime (10011002010131) 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, 715071572145 + ... + 715071572158.

It is an arithmetic number, because the mean of its divisors is an integer number (2860286288608).

Almost surely, 2^{10011002010121} is an apocalyptic number.

It is an amenable number.

10011002010121 is a deficient number, since it is larger than the sum of its proper divisors (1430143144311).

10011002010121 is an equidigital number, since it uses as much as digits as its factorization.

10011002010121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1430143144310.

The product of its (nonzero) digits is 4, while the sum is 10.

Adding to 10011002010121 its reverse (12101020011001), we get a palindrome (22112022021122).

The spelling of 10011002010121 in words is "ten trillion, eleven billion, two million, ten thousand, one hundred twenty-one".