20221021011 has 8 divisors (see below), whose sum is σ = 27014964480. Its totient is φ = 13453879112.

The previous prime is 20221021001. The next prime is 20221021027. The reversal of 20221021011 is 11012012202.

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 20221021011 - 2¹⁵ = 20220988243 is a prime.

It is not an unprimeable number, because it can be changed into a prime (20221021001) 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, 6698631 + ... + 6701648.

It is an arithmetic number, because the mean of its divisors is an integer number (3376870560).

Almost surely, 2^20221021011 is an apocalyptic number.

20221021011 is a deficient number, since it is larger than the sum of its proper divisors (6793943469).

20221021011 is a wasteful number, since it uses less digits than its factorization.

20221021011 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13400785.

The product of its (nonzero) digits is 16, while the sum is 12.

Adding to 20221021011 its reverse (11012012202), we get a palindrome (31233033213).

The spelling of 20221021011 in words is "twenty billion, two hundred twenty-one million, twenty-one thousand, eleven".