20012021120102 has 64 divisors (see below), whose sum is σ = 33275446444800. Its totient is φ = 8950474942080.

The previous prime is 20012021120093. The next prime is 20012021120111. The reversal of 20012021120102 is 20102112021002.

It is an interprime number because it is at equal distance from previous prime (20012021120093) and next prime (20012021120111).

It is a super-2 number, since 2×20012021120102² (a number of 27 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

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 31 ways as a sum of consecutive naturals, for example, 2434844549 + ... + 2434852767.

It is an arithmetic number, because the mean of its divisors is an integer number (519928850700).

Almost surely, 2^{20012021120102} is an apocalyptic number.

20012021120102 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

20012021120102 is a deficient number, since it is larger than the sum of its proper divisors (13263425324698).

20012021120102 is a wasteful number, since it uses less digits than its factorization.

20012021120102 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13541.

The product of its (nonzero) digits is 32, while the sum is 14.

Adding to 20012021120102 its reverse (20102112021002), we get a palindrome (40114133141104).

The spelling of 20012021120102 in words is "twenty trillion, twelve billion, twenty-one million, one hundred twenty thousand, one hundred two".