2212221002020 has 12 divisors (see below), whose sum is σ = 4645664104284. Its totient is φ = 884888400800.

The previous prime is 2212221001981. The next prime is 2212221002027. The reversal of 2212221002020 is 202001222122.

It can be written as a sum of positive squares in 2 ways, for example, as 1517612103396 + 694608898624 = 1231914^2 + 833432^2 .

It is a junction number, because it is equal to n+sod(n) for n = 2212221001985 and 2212221002003.

It is not an unprimeable number, because it can be changed into a prime (2212221002027) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 55305525031 + ... + 55305525070.

It is an arithmetic number, because the mean of its divisors is an integer number (387138675357).

Almost surely, 2^{2212221002020} is an apocalyptic number.

2212221002020 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2212221002020 is an abundant number, since it is smaller than the sum of its proper divisors (2433443102264).

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

2212221002020 is a wasteful number, since it uses less digits than its factorization.

2212221002020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 110611050110 (or 110611050108 counting only the distinct ones).

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

Adding to 2212221002020 its reverse (202001222122), we get a palindrome (2414222224142).

The spelling of 2212221002020 in words is "two trillion, two hundred twelve billion, two hundred twenty-one million, two thousand, twenty".