20142120434222 has 16 divisors (see below), whose sum is σ = 30525067642272. Its totient is φ = 9967100682240.

The previous prime is 20142120434207. The next prime is 20142120434263. The reversal of 20142120434222 is 22243402124102.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 14612423 + ... + 15931325.

It is an arithmetic number, because the mean of its divisors is an integer number (1907816727642).

Almost surely, 2^{20142120434222} is an apocalyptic number.

20142120434222 is a deficient number, since it is larger than the sum of its proper divisors (10382947208050).

20142120434222 is a wasteful number, since it uses less digits than its factorization.

20142120434222 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1397723.

The product of its (nonzero) digits is 12288, while the sum is 29.

Adding to 20142120434222 its reverse (22243402124102), we get a palindrome (42385522558324).

The spelling of 20142120434222 in words is "twenty trillion, one hundred forty-two billion, one hundred twenty million, four hundred thirty-four thousand, two hundred twenty-two".