220212202120220 has 48 divisors (see below), whose sum is σ = 462606647946240. Its totient is φ = 88054213541184.

The previous prime is 220212202120153. The next prime is 220212202120237. The reversal of 220212202120220 is 22021202212022.

It is a Harshad number since it is a multiple of its sum of digits (20).

It is a junction number, because it is equal to n+sod(n) for n = 220212202120192 and 220212202120201.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 988810841 + ... + 989033519.

It is an arithmetic number, because the mean of its divisors is an integer number (9637638498880).

Almost surely, 2^{220212202120220} is an apocalyptic number.

220212202120220 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

220212202120220 is an abundant number, since it is smaller than the sum of its proper divisors (242394445826020).

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

220212202120220 is a wasteful number, since it uses less digits than its factorization.

220212202120220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 239682 (or 239680 counting only the distinct ones).

The product of its (nonzero) digits is 512, while the sum is 20.

Adding to 220212202120220 its reverse (22021202212022), we get a palindrome (242233404332242).

The spelling of 220212202120220 in words is "two hundred twenty trillion, two hundred twelve billion, two hundred two million, one hundred twenty thousand, two hundred twenty".