22020111200020 has 24 divisors (see below), whose sum is σ = 46400056854984. Its totient is φ = 8777982892416.

The previous prime is 22020111199997. The next prime is 22020111200023. The reversal of 22020111200020 is 2000211102022.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 13135014099076 + 8885097100944 = 3624226^2 + 2980788^2 .

It is a super-2 number, since 2×22020111200020² (a number of 27 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22020111200023) 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, 1878843219 + ... + 1878854938.

It is an arithmetic number, because the mean of its divisors is an integer number (1933335702291).

Almost surely, 2^{22020111200020} is an apocalyptic number.

22020111200020 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

22020111200020 is an abundant number, since it is smaller than the sum of its proper divisors (24379945654964).

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

22020111200020 is a wasteful number, since it uses less digits than its factorization.

22020111200020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3757698459 (or 3757698457 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 13.

Adding to 22020111200020 its reverse (2000211102022), we get a palindrome (24020322302042).

The spelling of 22020111200020 in words is "twenty-two trillion, twenty billion, one hundred eleven million, two hundred thousand, twenty".