1221232033002 has 64 divisors (see below), whose sum is σ = 2608493829120. Its totient is φ = 380067738624.

The previous prime is 1221232032941. The next prime is 1221232033037. The reversal of 1221232033002 is 2003302321221.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 1221232033002.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 2094843 + ... + 2613585.

It is an arithmetic number, because the mean of its divisors is an integer number (40757716080).

Almost surely, 2^{1221232033002} is an apocalyptic number.

1221232033002 is an abundant number, since it is smaller than the sum of its proper divisors (1387261796118).

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

1221232033002 is a wasteful number, since it uses less digits than its factorization.

1221232033002 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 519067.

The product of its (nonzero) digits is 864, while the sum is 21.

Adding to 1221232033002 its reverse (2003302321221), we get a palindrome (3224534354223).

The spelling of 1221232033002 in words is "one trillion, two hundred twenty-one billion, two hundred thirty-two million, thirty-three thousand, two".