20022021111021 has 8 divisors (see below), whose sum is σ = 26696629980384. Its totient is φ = 13347713157840.

The previous prime is 20022021111007. The next prime is 20022021111047. The reversal of 20022021111021 is 12011112022002.

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

It is not a de Polignac number, because 20022021111021 - 2¹⁰ = 20022021109997 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20022021113021) 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, 75073746 + ... + 75339971.

It is an arithmetic number, because the mean of its divisors is an integer number (3337078747548).

Almost surely, 2^{20022021111021} is an apocalyptic number.

It is an amenable number.

20022021111021 is a deficient number, since it is larger than the sum of its proper divisors (6674608869363).

20022021111021 is a wasteful number, since it uses less digits than its factorization.

20022021111021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 150458091.

The product of its (nonzero) digits is 32, while the sum is 15.

Adding to 20022021111021 its reverse (12011112022002), we get a palindrome (32033133133023).

The spelling of 20022021111021 in words is "twenty trillion, twenty-two billion, twenty-one million, one hundred eleven thousand, twenty-one".