10011221122021 has 16 divisors (see below), whose sum is σ = 11855109623040. Its totient is φ = 8271720293760.

The previous prime is 10011221121991. The next prime is 10011221122031. The reversal of 10011221122021 is 12022112211001.

It is a de Polignac number, because none of the positive numbers 2^k-10011221122021 is a prime.

It is a super-2 number, since 2×10011221122021² (a number of 27 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 10011221121986 and 10011221122004.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (10011221122031) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 39839385 + ... + 40089886.

It is an arithmetic number, because the mean of its divisors is an integer number (740944351440).

Almost surely, 2^{10011221122021} is an apocalyptic number.

It is an amenable number.

10011221122021 is a deficient number, since it is larger than the sum of its proper divisors (1843888501019).

10011221122021 is an equidigital number, since it uses as much as digits as its factorization.

10011221122021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 79929924.

The product of its (nonzero) digits is 32, while the sum is 16.

Adding to 10011221122021 its reverse (12022112211001), we get a palindrome (22033333333022).

The spelling of 10011221122021 in words is "ten trillion, eleven billion, two hundred twenty-one million, one hundred twenty-two thousand, twenty-one".