2821201921092 has 24 divisors (see below), whose sum is σ = 6583807683936. Its totient is φ = 940257325888.

The previous prime is 2821201921079. The next prime is 2821201921121. The reversal of 2821201921092 is 2901291021282.

It is a self number, because there is not a number n which added to its sum of digits gives 2821201921092.

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 7 ways as a sum of consecutive naturals, for example, 17832273 + ... + 17989784.

It is an arithmetic number, because the mean of its divisors is an integer number (274325320164).

Almost surely, 2^{2821201921092} is an apocalyptic number.

It is an amenable number.

2821201921092 is an abundant number, since it is smaller than the sum of its proper divisors (3762605762844).

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

2821201921092 is a wasteful number, since it uses less digits than its factorization.

2821201921092 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 35828627 (or 35828625 counting only the distinct ones).

The product of its (nonzero) digits is 20736, while the sum is 39.

The spelling of 2821201921092 in words is "two trillion, eight hundred twenty-one billion, two hundred one million, nine hundred twenty-one thousand, ninety-two".