52021221142 has 8 divisors (see below), whose sum is σ = 85125634632. Its totient is φ = 23646009600.

The previous prime is 52021221137. The next prime is 52021221143. The reversal of 52021221142 is 24112212025.

52021221142 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a Harshad number since it is a multiple of its sum of digits (22), and also a Moran number because the ratio is a prime number: 2364600961 = 52021221142 / (5 + 2 + 0 + 2 + 1 + 2 + 2 + 1 + 1 + 4 + 2).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (52021221143) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1182300459 + ... + 1182300502.

It is an arithmetic number, because the mean of its divisors is an integer number (10640704329).

Almost surely, 2^52021221142 is an apocalyptic number.

52021221142 is a deficient number, since it is larger than the sum of its proper divisors (33104413490).

52021221142 is a wasteful number, since it uses less digits than its factorization.

52021221142 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2364600974.

The product of its (nonzero) digits is 640, while the sum is 22.

Adding to 52021221142 its reverse (24112212025), we get a palindrome (76133433167).

The spelling of 52021221142 in words is "fifty-two billion, twenty-one million, two hundred twenty-one thousand, one hundred forty-two".