1220220220212 has 36 divisors (see below), whose sum is σ = 3525080636896. Its totient is φ = 348634348560.

The previous prime is 1220220220211. The next prime is 1220220220213. The reversal of 1220220220212 is 2120220220221.

1220220220212 is a `hidden beast` number, since 1 + 220 + 220 + 220 + 2 + 1 + 2 = 666.

It is an interprime number because it is at equal distance from previous prime (1220220220211) and next prime (1220220220213).

It is a tau number, because it is divible by the number of its divisors (36).

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1220220220211) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 2421071614 + ... + 2421072117.

Almost surely, 2^{1220220220212} is an apocalyptic number.

1220220220212 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

1220220220212 is an abundant number, since it is smaller than the sum of its proper divisors (2304860416684).

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

1220220220212 is a wasteful number, since it uses less digits than its factorization.

1220220220212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4842143748 (or 4842143743 counting only the distinct ones).

The product of its (nonzero) digits is 256, while the sum is 18.

Adding to 1220220220212 its reverse (2120220220221), we get a palindrome (3340440440433).

Subtracting 1220220220212 from its reverse (2120220220221), we obtain a palindrome (900000000009).

The spelling of 1220220220212 in words is "one trillion, two hundred twenty billion, two hundred twenty million, two hundred twenty thousand, two hundred twelve".