1220221210002 has 8 divisors (see below), whose sum is σ = 2440442420016. Its totient is φ = 406740403332.

The previous prime is 1220221209971. The next prime is 1220221210003. The reversal of 1220221210002 is 2000121220221.

It is a sphenic number, since it is the product of 3 distinct primes.

1220221210002 is an admirable number.

It is not an unprimeable number, because it can be changed into a prime (1220221210003) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 101685100828 + ... + 101685100839.

It is an arithmetic number, because the mean of its divisors is an integer number (305055302502).

Almost surely, 2^{1220221210002} is an apocalyptic number.

1220221210002 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

1220221210002 is a wasteful number, since it uses less digits than its factorization.

1220221210002 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 203370201672.

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

Adding to 1220221210002 its reverse (2000121220221), we get a palindrome (3220342430223).

The spelling of 1220221210002 in words is "one trillion, two hundred twenty billion, two hundred twenty-one million, two hundred ten thousand, two".