10011121012021 has 8 divisors (see below), whose sum is σ = 10070752658400. Its totient is φ = 9951646086000.

The previous prime is 10011121011989. The next prime is 10011121012037. The reversal of 10011121012021 is 12021012111001.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 10011121012021 - 2⁵ = 10011121011989 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 10011121011992 and 10011121012010.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (10011121012091) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 39051951 + ... + 39307468.

It is an arithmetic number, because the mean of its divisors is an integer number (1258844082300).

Almost surely, 2^{10011121012021} is an apocalyptic number.

It is an amenable number.

10011121012021 is a deficient number, since it is larger than the sum of its proper divisors (59631646379).

10011121012021 is an equidigital number, since it uses as much as digits as its factorization.

10011121012021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 78360179.

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

Adding to 10011121012021 its reverse (12021012111001), we get a palindrome (22032133123022).

The spelling of 10011121012021 in words is "ten trillion, eleven billion, one hundred twenty-one million, twelve thousand, twenty-one".