220212210120020 has 12 divisors (see below), whose sum is σ = 462445641252084. Its totient is φ = 88084884048000.

The previous prime is 220212210119983. The next prime is 220212210120041. The reversal of 220212210120020 is 20021012212022.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 109950407804176 + 110261802315844 = 10485724^2 + 10500562^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5505305252981 + ... + 5505305253020.

It is an arithmetic number, because the mean of its divisors is an integer number (38537136771007).

Almost surely, 2^{220212210120020} is an apocalyptic number.

220212210120020 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

220212210120020 is an abundant number, since it is smaller than the sum of its proper divisors (242233431132064).

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

220212210120020 is a wasteful number, since it uses less digits than its factorization.

220212210120020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11010610506010 (or 11010610506008 counting only the distinct ones).

The product of its (nonzero) digits is 128, while the sum is 17.

Adding to 220212210120020 its reverse (20021012212022), we get a palindrome (240233222332042).

The spelling of 220212210120020 in words is "two hundred twenty trillion, two hundred twelve billion, two hundred ten million, one hundred twenty thousand, twenty".