2002021722056 has 16 divisors (see below), whose sum is σ = 3754262252400. Its totient is φ = 1000885121424.

The previous prime is 2002021722011. The next prime is 2002021722079. The reversal of 2002021722056 is 6502271202002.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 15649766 + ... + 15777173.

It is an arithmetic number, because the mean of its divisors is an integer number (234641390775).

Almost surely, 2^{2002021722056} is an apocalyptic number.

It is an amenable number.

2002021722056 is a deficient number, since it is larger than the sum of its proper divisors (1752240530344).

2002021722056 is a wasteful number, since it uses less digits than its factorization.

2002021722056 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 31434908 (or 31434904 counting only the distinct ones).

The product of its (nonzero) digits is 6720, while the sum is 29.

Adding to 2002021722056 its reverse (6502271202002), we get a palindrome (8504292924058).

The spelling of 2002021722056 in words is "two trillion, two billion, twenty-one million, seven hundred twenty-two thousand, fifty-six".