121212021002 has 8 divisors (see below), whose sum is σ = 182391590916. Its totient is φ = 60414824032.

The previous prime is 121212020999. The next prime is 121212021017. The reversal of 121212021002 is 200120212121.

It can be written as a sum of positive squares in 2 ways, for example, as 116745905761 + 4466115241 = 341681^2 + 66829^2 .

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

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 95592443 + ... + 95593710.

Almost surely, 2^121212021002 is an apocalyptic number.

121212021002 is a deficient number, since it is larger than the sum of its proper divisors (61179569914).

121212021002 is a wasteful number, since it uses less digits than its factorization.

121212021002 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 191186472.

The product of its (nonzero) digits is 32, while the sum is 14.

Adding to 121212021002 its reverse (200120212121), we get a palindrome (321332233123).

The spelling of 121212021002 in words is "one hundred twenty-one billion, two hundred twelve million, twenty-one thousand, two".