22211002220020 has 96 divisors (see below), whose sum is σ = 47208899727360. Its totient is φ = 8777281121280.

The previous prime is 22211002219981. The next prime is 22211002220027. The reversal of 22211002220020 is 2002220011222.

It is a junction number, because it is equal to n+sod(n) for n = 22211002219976 and 22211002220003.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22211002220027) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 781815576 + ... + 781843984.

It is an arithmetic number, because the mean of its divisors is an integer number (491759372160).

Almost surely, 2^{22211002220020} is an apocalyptic number.

22211002220020 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

22211002220020 is an abundant number, since it is smaller than the sum of its proper divisors (24997897507340).

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

22211002220020 is a wasteful number, since it uses less digits than its factorization.

22211002220020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 29833 (or 29831 counting only the distinct ones).

The product of its (nonzero) digits is 128, while the sum is 16.

Adding to 22211002220020 its reverse (2002220011222), we get a palindrome (24213222231242).

The spelling of 22211002220020 in words is "twenty-two trillion, two hundred eleven billion, two million, two hundred twenty thousand, twenty".