121102020002 has 8 divisors (see below), whose sum is σ = 182575127196. Its totient is φ = 60243644272.

The previous prime is 121102019989. The next prime is 121102020019. The reversal of 121102020002 is 200020201121.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 86977216561 + 34124803441 = 294919^2 + 184729^2 .

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, 153682373 + ... + 153683160.

Almost surely, 2^121102020002 is an apocalyptic number.

121102020002 is a deficient number, since it is larger than the sum of its proper divisors (61473107194).

121102020002 is a wasteful number, since it uses less digits than its factorization.

121102020002 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 307365732.

The product of its (nonzero) digits is 16, while the sum is 11.

Adding to 121102020002 its reverse (200020201121), we get a palindrome (321122221123).

The spelling of 121102020002 in words is "one hundred twenty-one billion, one hundred two million, twenty thousand, two".