10011020112121 has 4 divisors (see below), whose sum is σ = 11441165842432. Its totient is φ = 8580874381812.

The previous prime is 10011020112113. The next prime is 10011020112151. The reversal of 10011020112121 is 12121102011001.

It is a happy number.

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 10011020112121 - 2³ = 10011020112113 is a prime.

It is a super-2 number, since 2×10011020112121² (a number of 27 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (10011020112151) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 715072865145 + ... + 715072865158.

It is an arithmetic number, because the mean of its divisors is an integer number (2860291460608).

Almost surely, 2^{10011020112121} is an apocalyptic number.

It is an amenable number.

10011020112121 is a deficient number, since it is larger than the sum of its proper divisors (1430145730311).

10011020112121 is an equidigital number, since it uses as much as digits as its factorization.

10011020112121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1430145730310.

The product of its (nonzero) digits is 8, while the sum is 13.

Adding to 10011020112121 its reverse (12121102011001), we get a palindrome (22132122123122).

The spelling of 10011020112121 in words is "ten trillion, eleven billion, twenty million, one hundred twelve thousand, one hundred twenty-one".