1011121020001 has 8 divisors (see below), whose sum is σ = 1047710488320. Its totient is φ = 974646433488.

The previous prime is 1011121019981. The next prime is 1011121020023. The reversal of 1011121020001 is 1000201211101.

1011121020001 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 1011121020001 - 2⁷ = 1011121019873 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 1011121020001.

It is not an unprimeable number, because it can be changed into a prime (1011121020031) 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, 28702531 + ... + 28737736.

It is an arithmetic number, because the mean of its divisors is an integer number (130963811040).

Almost surely, 2^{1011121020001} is an apocalyptic number.

It is an amenable number.

1011121020001 is a deficient number, since it is larger than the sum of its proper divisors (36589468319).

1011121020001 is an equidigital number, since it uses as much as digits as its factorization.

1011121020001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 57440903.

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

Adding to 1011121020001 its reverse (1000201211101), we get a palindrome (2011322231102).

The spelling of 1011121020001 in words is "one trillion, eleven billion, one hundred twenty-one million, twenty thousand, one".