12020001212220 has 24 divisors (see below), whose sum is σ = 33656003394384. Its totient is φ = 3205333656576.

The previous prime is 12020001212207. The next prime is 12020001212243. The reversal of 12020001212220 is 2221210002021.

It is a super-3 number, since 3×12020001212220³ (a number of 40 digits) contains 333 as substring.

It is a Harshad number since it is a multiple of its sum of digits (15).

It is a self number, because there is not a number n which added to its sum of digits gives 12020001212220.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 100166676709 + ... + 100166676828.

It is an arithmetic number, because the mean of its divisors is an integer number (1402333474766).

Almost surely, 2^{12020001212220} is an apocalyptic number.

12020001212220 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12020001212220 is an abundant number, since it is smaller than the sum of its proper divisors (21636002182164).

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

12020001212220 is a wasteful number, since it uses less digits than its factorization.

12020001212220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 200333353549 (or 200333353547 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 15.

Adding to 12020001212220 its reverse (2221210002021), we get a palindrome (14241211214241).

The spelling of 12020001212220 in words is "twelve trillion, twenty billion, one million, two hundred twelve thousand, two hundred twenty".