1220012020220 has 48 divisors (see below), whose sum is σ = 2951084236800. Its totient is φ = 414996208704.

The previous prime is 1220012020207. The next prime is 1220012020223. The reversal of 1220012020220 is 220202100221.

It is a Harshad number since it is a multiple of its sum of digits (14).

It is a junction number, because it is equal to n+sod(n) for n = 1220012020195 and 1220012020204.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1220012020223) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 34290770 + ... + 34326329.

It is an arithmetic number, because the mean of its divisors is an integer number (61480921600).

Almost surely, 2^{1220012020220} is an apocalyptic number.

1220012020220 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1220012020220 is an abundant number, since it is smaller than the sum of its proper divisors (1731072216580).

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

1220012020220 is a wasteful number, since it uses less digits than its factorization.

1220012020220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 68617242 (or 68617240 counting only the distinct ones).

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

Adding to 1220012020220 its reverse (220202100221), we get a palindrome (1440214120441).

The spelling of 1220012020220 in words is "one trillion, two hundred twenty billion, twelve million, twenty thousand, two hundred twenty".