20010121010110 has 192 divisors, whose sum is σ = 48072552675840. Its totient is φ = 5853435667200.

The previous prime is 20010121010041. The next prime is 20010121010123. The reversal of 20010121010110 is 1101012101002.

It is a Harshad number since it is a multiple of its sum of digits (10).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 16638480 + ... + 17800540.

It is an arithmetic number, because the mean of its divisors is an integer number (250377878520).

Almost surely, 2^{20010121010110} is an apocalyptic number.

20010121010110 is an abundant number, since it is smaller than the sum of its proper divisors (28062431665730).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

20010121010110 is a wasteful number, since it uses less digits than its factorization.

20010121010110 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1162223 (or 1162212 counting only the distinct ones).

The product of its (nonzero) digits is 4, while the sum is 10.

Adding to 20010121010110 its reverse (1101012101002), we get a palindrome (21111133111112).

The spelling of 20010121010110 in words is "twenty trillion, ten billion, one hundred twenty-one million, ten thousand, one hundred ten".