20021102011012 has 12 divisors (see below), whose sum is σ = 35037076384576. Its totient is φ = 10010508758280.

The previous prime is 20021102010991. The next prime is 20021102011081. The reversal of 20021102011012 is 21011020112002.

It is a junction number, because it is equal to n+sod(n) for n = 20021102010983 and 20021102011001.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 9483288 + ... + 11400655.

Almost surely, 2^{20021102011012} is an apocalyptic number.

It is an amenable number.

20021102011012 is a deficient number, since it is larger than the sum of its proper divisors (15015974373564).

20021102011012 is a wasteful number, since it uses less digits than its factorization.

20021102011012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21123618 (or 21123616 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 13.

Adding to 20021102011012 its reverse (21011020112002), we get a palindrome (41032122123014).

The spelling of 20021102011012 in words is "twenty trillion, twenty-one billion, one hundred two million, eleven thousand, twelve".