2121202729283 has 72 divisors (see below), whose sum is σ = 2517927315456. Its totient is φ = 1770214485600.

The previous prime is 2121202729279. The next prime is 2121202729291. The reversal of 2121202729283 is 3829272021212.

It is not a de Polignac number, because 2121202729283 - 2² = 2121202729279 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 2121202729283.

It is not an unprimeable number, because it can be changed into a prime (2121202729273) by changing a digit.

It is a polite number, since it can be written in 71 ways as a sum of consecutive naturals, for example, 5779843766 + ... + 5779844132.

Almost surely, 2^{2121202729283} is an apocalyptic number.

2121202729283 is a gapful number since it is divisible by the number (23) formed by its first and last digit.

2121202729283 is a deficient number, since it is larger than the sum of its proper divisors (396724586173).

2121202729283 is a wasteful number, since it uses less digits than its factorization.

2121202729283 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 813 (or 611 counting only the distinct ones).

The product of its (nonzero) digits is 96768, while the sum is 41.

The spelling of 2121202729283 in words is "two trillion, one hundred twenty-one billion, two hundred two million, seven hundred twenty-nine thousand, two hundred eighty-three".