20211122111001 has 8 divisors (see below), whose sum is σ = 26948184620544. Its totient is φ = 13474070504400.

The previous prime is 20211122110973. The next prime is 20211122111009. The reversal of 20211122111001 is 10011122111202.

It is a happy number.

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

It is not a de Polignac number, because 20211122111001 - 2⁷ = 20211122110873 is a prime.

It is not an unprimeable number, because it can be changed into a prime (20211122111009) 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, 3901576 + ... + 7459526.

It is an arithmetic number, because the mean of its divisors is an integer number (3368523077568).

Almost surely, 2^{20211122111001} is an apocalyptic number.

It is an amenable number.

20211122111001 is a deficient number, since it is larger than the sum of its proper divisors (6737062509543).

20211122111001 is a wasteful number, since it uses less digits than its factorization.

20211122111001 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5451471.

The product of its (nonzero) digits is 16, while the sum is 15.

Adding to 20211122111001 its reverse (10011122111202), we get a palindrome (30222244222203).

The spelling of 20211122111001 in words is "twenty trillion, two hundred eleven billion, one hundred twenty-two million, one hundred eleven thousand, one".