20010121010022 has 128 divisors (see below), whose sum is σ = 50483645549568. Its totient is φ = 5193790156800.

The previous prime is 20010121010021. The next prime is 20010121010041. The reversal of 20010121010022 is 22001012101002.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20010121010021) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 8625463 + ... + 10696674.

It is an arithmetic number, because the mean of its divisors is an integer number (394403480856).

Almost surely, 2^{20010121010022} is an apocalyptic number.

20010121010022 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

20010121010022 is an abundant number, since it is smaller than the sum of its proper divisors (30473524539546).

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

20010121010022 is a wasteful number, since it uses less digits than its factorization.

20010121010022 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19322254.

The product of its (nonzero) digits is 16, while the sum is 12.

Adding to 20010121010022 its reverse (22001012101002), we get a palindrome (42011133111024).

It can be divided in two parts, 2001012101002 and 2, that multiplied together give a palindrome (4002024202004).

The spelling of 20010121010022 in words is "twenty trillion, ten billion, one hundred twenty-one million, ten thousand, twenty-two".