2211020222020 has 24 divisors (see below), whose sum is σ = 4916268494424. Its totient is φ = 832384083456.

The previous prime is 2211020222017. The next prime is 2211020222029. The reversal of 2211020222020 is 202220201122.

It can be written as a sum of positive squares in 4 ways, for example, as 330781418496 + 1880238803524 = 575136^2 + 1371218^2 .

It is a super-2 number, since 2×2211020222020² (a number of 25 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 2211020221985 and 2211020222003.

It is not an unprimeable number, because it can be changed into a prime (2211020222029) 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, 3251499987 + ... + 3251500666.

It is an arithmetic number, because the mean of its divisors is an integer number (204844520601).

Almost surely, 2^{2211020222020} is an apocalyptic number.

2211020222020 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2211020222020 is an abundant number, since it is smaller than the sum of its proper divisors (2705248272404).

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

2211020222020 is a wasteful number, since it uses less digits than its factorization.

2211020222020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6503000679 (or 6503000677 counting only the distinct ones).

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

Adding to 2211020222020 its reverse (202220201122), we get a palindrome (2413240423142).

The spelling of 2211020222020 in words is "two trillion, two hundred eleven billion, twenty million, two hundred twenty-two thousand, twenty".