121021220002 has 8 divisors (see below), whose sum is σ = 189424518336. Its totient is φ = 57879713892.

The previous prime is 121021219999. The next prime is 121021220027. The reversal of 121021220002 is 200022120121.

It is a happy number.

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

It is a super-2 number, since 2×121021220002² (a number of 23 digits) contains 22 as substring.

It is an unprimeable number.

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, 1315447998 + ... + 1315448089.

It is an arithmetic number, because the mean of its divisors is an integer number (23678064792).

Almost surely, 2^121021220002 is an apocalyptic number.

121021220002 is a deficient number, since it is larger than the sum of its proper divisors (68403298334).

121021220002 is a wasteful number, since it uses less digits than its factorization.

121021220002 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2630896112.

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

Adding to 121021220002 its reverse (200022120121), we get a palindrome (321043340123).

The spelling of 121021220002 in words is "one hundred twenty-one billion, twenty-one million, two hundred twenty thousand, two".