2021140300140 has 180 divisors, whose sum is σ = 6641690603184. Its totient is φ = 497510193024.

The previous prime is 2021140300139. The next prime is 2021140300243. The reversal of 2021140300140 is 410030411202.

It is a tau number, because it is divible by the number of its divisors (180).

It is a super-2 number, since 2×2021140300140² (a number of 25 digits) contains 22 as substring.

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

It is an unprimeable number.

It is a polite number, since it can be written in 59 ways as a sum of consecutive naturals, for example, 4944409 + ... + 5337551.

Almost surely, 2^{2021140300140} is an apocalyptic number.

2021140300140 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2021140300140, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3320845301592).

2021140300140 is an abundant number, since it is smaller than the sum of its proper divisors (4620550303044).

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

2021140300140 is a wasteful number, since it uses less digits than its factorization.

2021140300140 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 393210 (or 393166 counting only the distinct ones).

The product of its (nonzero) digits is 192, while the sum is 18.

Adding to 2021140300140 its reverse (410030411202), we get a palindrome (2431170711342).

The spelling of 2021140300140 in words is "two trillion, twenty-one billion, one hundred forty million, three hundred thousand, one hundred forty".