1011120012021 has 32 divisors (see below), whose sum is σ = 1564069109760. Its totient is φ = 569043326016.

The previous prime is 1011120011879. The next prime is 1011120012043. The reversal of 1011120012021 is 1202100211101.

It is not a de Polignac number, because 1011120012021 - 2¹⁷ = 1011119880949 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 1011120011988 and 1011120012006.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1011120012061) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 7086775 + ... + 7228043.

It is an arithmetic number, because the mean of its divisors is an integer number (48877159680).

Almost surely, 2^{1011120012021} is an apocalyptic number.

It is an amenable number.

1011120012021 is a deficient number, since it is larger than the sum of its proper divisors (552949097739).

1011120012021 is a wasteful number, since it uses less digits than its factorization.

1011120012021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 146433.

The product of its (nonzero) digits is 8, while the sum is 12.

Adding to 1011120012021 its reverse (1202100211101), we get a palindrome (2213220223122).

The spelling of 1011120012021 in words is "one trillion, eleven billion, one hundred twenty million, twelve thousand, twenty-one".