20021020022102 has 16 divisors (see below), whose sum is σ = 33647119645392. Its totient is φ = 8854505169120.

The previous prime is 20021020022071. The next prime is 20021020022147. The reversal of 20021020022102 is 20122002012002.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 12297923033 + ... + 12297924660.

It is an arithmetic number, because the mean of its divisors is an integer number (2102944977837).

Almost surely, 2^{20021020022102} is an apocalyptic number.

20021020022102 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

20021020022102 is a deficient number, since it is larger than the sum of its proper divisors (13626099623290).

20021020022102 is a wasteful number, since it uses less digits than its factorization.

20021020022102 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 24595847743.

The product of its (nonzero) digits is 64, while the sum is 14.

Adding to 20021020022102 its reverse (20122002012002), we get a palindrome (40143022034104).

The spelling of 20021020022102 in words is "twenty trillion, twenty-one billion, twenty million, twenty-two thousand, one hundred two".