12220212101020 has 96 divisors (see below), whose sum is σ = 32311517124096. Its totient is φ = 3771185376000.

The previous prime is 12220212101011. The next prime is 12220212101029. The reversal of 12220212101020 is 2010121202221.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (12220212101011) and next prime (12220212101029).

It is a junction number, because it is equal to n+sod(n) for n = 12220212100985 and 12220212101003.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12220212101029) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 39127642 + ... + 39438721.

It is an arithmetic number, because the mean of its divisors is an integer number (336578303376).

Almost surely, 2^{12220212101020} is an apocalyptic number.

12220212101020 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12220212101020 is an abundant number, since it is smaller than the sum of its proper divisors (20091305023076).

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

12220212101020 is a wasteful number, since it uses less digits than its factorization.

12220212101020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 78566491 (or 78566489 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 16.

Adding to 12220212101020 its reverse (2010121202221), we get a palindrome (14230333303241).

The spelling of 12220212101020 in words is "twelve trillion, two hundred twenty billion, two hundred twelve million, one hundred one thousand, twenty".