2056212610621 has 8 divisors (see below), whose sum is σ = 2227642591104. Its totient is φ = 1886676884400.

The previous prime is 2056212610553. The next prime is 2056212610651. The reversal of 2056212610621 is 1260162126502.

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

It is a cyclic number.

It is not a de Polignac number, because 2056212610621 - 2³¹ = 2054065126973 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2056212610651) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 473561305 + ... + 473565646.

It is an arithmetic number, because the mean of its divisors is an integer number (278455323888).

Almost surely, 2^{2056212610621} is an apocalyptic number.

It is an amenable number.

2056212610621 is a deficient number, since it is larger than the sum of its proper divisors (171429980483).

2056212610621 is a wasteful number, since it uses less digits than its factorization.

2056212610621 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 947127131.

The product of its (nonzero) digits is 17280, while the sum is 34.

The spelling of 2056212610621 in words is "two trillion, fifty-six billion, two hundred twelve million, six hundred ten thousand, six hundred twenty-one".