20200221140 has 24 divisors (see below), whose sum is σ = 46276870752. Its totient is φ = 7345534880.

The previous prime is 20200221103. The next prime is 20200221143. The reversal of 20200221140 is 4112200202.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20200221143) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 45909374 + ... + 45909813.

It is an arithmetic number, because the mean of its divisors is an integer number (1928202948).

Almost surely, 2^20200221140 is an apocalyptic number.

20200221140 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

20200221140 is an abundant number, since it is smaller than the sum of its proper divisors (26076649612).

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

20200221140 is a wasteful number, since it uses less digits than its factorization.

20200221140 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 91819207 (or 91819205 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 14.

Adding to 20200221140 its reverse (4112200202), we get a palindrome (24312421342).

The spelling of 20200221140 in words is "twenty billion, two hundred million, two hundred twenty-one thousand, one hundred forty".