121020221002 has 32 divisors (see below), whose sum is σ = 184035704832. Its totient is φ = 59681394864.

The previous prime is 121020220999. The next prime is 121020221009. The reversal of 121020221002 is 200122020121.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (121020221009) 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 15 ways as a sum of consecutive naturals, for example, 69272293 + ... + 69274039.

It is an arithmetic number, because the mean of its divisors is an integer number (5751115776).

Almost surely, 2^121020221002 is an apocalyptic number.

121020221002 is a deficient number, since it is larger than the sum of its proper divisors (63015483830).

121020221002 is a wasteful number, since it uses less digits than its factorization.

121020221002 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3322.

The product of its (nonzero) digits is 32, while the sum is 13.

Adding to 121020221002 its reverse (200122020121), we get a palindrome (321142241123).

The spelling of 121020221002 in words is "one hundred twenty-one billion, twenty million, two hundred twenty-one thousand, two".