2120212020020 has 12 divisors (see below), whose sum is σ = 4452445242084. Its totient is φ = 848084808000.

The previous prime is 2120212020011. The next prime is 2120212020029. The reversal of 2120212020020 is 200202120212.

It is an interprime number because it is at equal distance from previous prime (2120212020011) and next prime (2120212020029).

It can be written as a sum of positive squares in 2 ways, for example, as 1324612242724 + 795599777296 = 1150918^2 + 891964^2 .

It is a junction number, because it is equal to n+sod(n) for n = 2120212019977 and 2120212020004.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2120212020029) 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, 53005300481 + ... + 53005300520.

It is an arithmetic number, because the mean of its divisors is an integer number (371037103507).

Almost surely, 2^{2120212020020} is an apocalyptic number.

2120212020020 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2120212020020 is an abundant number, since it is smaller than the sum of its proper divisors (2332233222064).

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

2120212020020 is a wasteful number, since it uses less digits than its factorization.

2120212020020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 106010601010 (or 106010601008 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 14.

Adding to 2120212020020 its reverse (200202120212), we get a palindrome (2320414140232).

The spelling of 2120212020020 in words is "two trillion, one hundred twenty billion, two hundred twelve million, twenty thousand, twenty".