22420312142 has 16 divisors (see below), whose sum is σ = 33820526592. Its totient is φ = 11146981560.

The previous prime is 22420312139. The next prime is 22420312207. The reversal of 22420312142 is 24121302422.

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, 209333 + ... + 297759.

It is an arithmetic number, because the mean of its divisors is an integer number (2113782912).

Almost surely, 2^22420312142 is an apocalyptic number.

22420312142 is a deficient number, since it is larger than the sum of its proper divisors (11400214450).

22420312142 is a wasteful number, since it uses less digits than its factorization.

22420312142 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 89143.

The product of its (nonzero) digits is 1536, while the sum is 23.

Adding to 22420312142 its reverse (24121302422), we get a palindrome (46541614564).

The spelling of 22420312142 in words is "twenty-two billion, four hundred twenty million, three hundred twelve thousand, one hundred forty-two".