20021012110102 has 16 divisors (see below), whose sum is σ = 30858649155072. Its totient is φ = 9737409093480.

The previous prime is 20021012110091. The next prime is 20021012110117. The reversal of 20021012110102 is 20101121012002.

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, 653326674 + ... + 653357317.

It is an arithmetic number, because the mean of its divisors is an integer number (1928665572192).

Almost surely, 2^{20021012110102} is an apocalyptic number.

20021012110102 is a deficient number, since it is larger than the sum of its proper divisors (10837637044970).

20021012110102 is a wasteful number, since it uses less digits than its factorization.

20021012110102 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1306684203.

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

Adding to 20021012110102 its reverse (20101121012002), we get a palindrome (40122133122104).

The spelling of 20021012110102 in words is "twenty trillion, twenty-one billion, twelve million, one hundred ten thousand, one hundred two".