1220111021002 has 8 divisors (see below), whose sum is σ = 1830375028800. Its totient is φ = 609986011404.

The previous prime is 1220111020969. The next prime is 1220111021009. The reversal of 1220111021002 is 2001201110221.

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

It is not an unprimeable number, because it can be changed into a prime (1220111021009) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 34727602 + ... + 34762717.

It is an arithmetic number, because the mean of its divisors is an integer number (228796878600).

Almost surely, 2^{1220111021002} is an apocalyptic number.

1220111021002 is a deficient number, since it is larger than the sum of its proper divisors (610264007798).

1220111021002 is an equidigital number, since it uses as much as digits as its factorization.

1220111021002 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 69499100.

The product of its (nonzero) digits is 16, while the sum is 13.

Adding to 1220111021002 its reverse (2001201110221), we get a palindrome (3221312131223).

The spelling of 1220111021002 in words is "one trillion, two hundred twenty billion, one hundred eleven million, twenty-one thousand, two".