20212212002020 has 24 divisors (see below), whose sum is σ = 42603435718200. Its totient is φ = 8054829464832.

The previous prime is 20212212001999. The next prime is 20212212002029. The reversal of 20212212002020 is 2020021221202.

It can be written as a sum of positive squares in 4 ways, for example, as 2178481537024 + 18033730464996 = 1475968^2 + 4246614^2 .

It is a junction number, because it is equal to n+sod(n) for n = 20212212001985 and 20212212002003.

It is not an unprimeable number, because it can be changed into a prime (20212212002029) 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, 1878452985 + ... + 1878463744.

It is an arithmetic number, because the mean of its divisors is an integer number (1775143154925).

Almost surely, 2^{20212212002020} is an apocalyptic number.

20212212002020 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

20212212002020 is an abundant number, since it is smaller than the sum of its proper divisors (22391223716180).

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

20212212002020 is a wasteful number, since it uses less digits than its factorization.

20212212002020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3756917007 (or 3756917005 counting only the distinct ones).

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

Adding to 20212212002020 its reverse (2020021221202), we get a palindrome (22232233223222).

The spelling of 20212212002020 in words is "twenty trillion, two hundred twelve billion, two hundred twelve million, two thousand, twenty".