20212004142 has 64 divisors (see below), whose sum is σ = 49015756800. Its totient is φ = 6122730240.

The previous prime is 20212004063. The next prime is 20212004173. The reversal of 20212004142 is 24140021202.

It is a super-3 number, since 3×20212004142³ (a number of 32 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 3018334 + ... + 3025022.

It is an arithmetic number, because the mean of its divisors is an integer number (765871200).

Almost surely, 2^20212004142 is an apocalyptic number.

20212004142 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

20212004142 is an abundant number, since it is smaller than the sum of its proper divisors (28803752658).

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

20212004142 is a wasteful number, since it uses less digits than its factorization.

20212004142 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11798 (or 11792 counting only the distinct ones).

The product of its (nonzero) digits is 256, while the sum is 18.

Adding to 20212004142 its reverse (24140021202), we get a palindrome (44352025344).

The spelling of 20212004142 in words is "twenty billion, two hundred twelve million, four thousand, one hundred forty-two".