22021001022 has 16 divisors (see below), whose sum is σ = 44231026320. Its totient is φ = 7308829632.

The previous prime is 22021001011. The next prime is 22021001047. The reversal of 22021001022 is 22010012022.

It is a junction number, because it is equal to n+sod(n) for n = 22021000989 and 22021001007.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 7874497 + ... + 7877292.

It is an arithmetic number, because the mean of its divisors is an integer number (2764439145).

Almost surely, 2^22021001022 is an apocalyptic number.

22021001022 is an abundant number, since it is smaller than the sum of its proper divisors (22210025298).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

22021001022 is a wasteful number, since it uses less digits than its factorization.

22021001022 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15752027.

The product of its (nonzero) digits is 32, while the sum is 12.

Adding to 22021001022 its reverse (22010012022), we get a palindrome (44031013044).

The spelling of 22021001022 in words is "twenty-two billion, twenty-one million, one thousand, twenty-two".