2121605000202 has 8 divisors (see below), whose sum is σ = 4243210000416. Its totient is φ = 707201666732.

The previous prime is 2121605000173. The next prime is 2121605000243. The reversal of 2121605000202 is 2020005061212.

It is a happy number.

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

2121605000202 is an admirable number.

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, 176800416678 + ... + 176800416689.

It is an arithmetic number, because the mean of its divisors is an integer number (530401250052).

Almost surely, 2^{2121605000202} is an apocalyptic number.

2121605000202 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

2121605000202 is a wasteful number, since it uses less digits than its factorization.

2121605000202 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 353600833372.

The product of its (nonzero) digits is 480, while the sum is 21.

The spelling of 2121605000202 in words is "two trillion, one hundred twenty-one billion, six hundred five million, two hundred two", and thus it is an aban number.