22211021021020 has 24 divisors (see below), whose sum is σ = 50231078309664. Its totient is φ = 8200992376896.

The previous prime is 22211021020961. The next prime is 22211021021029. The reversal of 22211021021020 is 2012012011222.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 22211021020985 and 22211021021003.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22211021021029) 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, 42713501704 + ... + 42713502223.

It is an arithmetic number, because the mean of its divisors is an integer number (2092961596236).

Almost surely, 2^{22211021021020} is an apocalyptic number.

22211021021020 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

22211021021020 is an abundant number, since it is smaller than the sum of its proper divisors (28020057288644).

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

22211021021020 is a wasteful number, since it uses less digits than its factorization.

22211021021020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 85427003949 (or 85427003947 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 16.

Adding to 22211021021020 its reverse (2012012011222), we get a palindrome (24223033032242).

The spelling of 22211021021020 in words is "twenty-two trillion, two hundred eleven billion, twenty-one million, twenty-one thousand, twenty".