12220211021000 has 32 divisors (see below), whose sum is σ = 28595293791480. Its totient is φ = 4888084408000.

The previous prime is 12220211020991. The next prime is 12220211021003. The reversal of 12220211021000 is 12011202221.

It can be written as a sum of positive squares in 4 ways, for example, as 7057109136484 + 5163101884516 = 2656522^2 + 2272246^2 .

It is not an unprimeable number, because it can be changed into a prime (12220211021003) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6110104511 + ... + 6110106510.

Almost surely, 2^{12220211021000} is an apocalyptic number.

12220211021000 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12220211021000 is an abundant number, since it is smaller than the sum of its proper divisors (16375082770480).

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

12220211021000 is a wasteful number, since it uses less digits than its factorization.

12220211021000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12220211042 (or 12220211028 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 14.

Adding to 12220211021000 its reverse (12011202221), we get a palindrome (12232222223221).

The spelling of 12220211021000 in words is "twelve trillion, two hundred twenty billion, two hundred eleven million, twenty-one thousand".