20422125112 has 8 divisors (see below), whose sum is σ = 38291484600. Its totient is φ = 10211062552.

The previous prime is 20422125107. The next prime is 20422125137. The reversal of 20422125112 is 21152122402.

It is a tau number, because it is divible by the number of its divisors (8).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1276382812 + ... + 1276382827.

It is an arithmetic number, because the mean of its divisors is an integer number (4786435575).

Almost surely, 2^20422125112 is an apocalyptic number.

It is an amenable number.

20422125112 is a deficient number, since it is larger than the sum of its proper divisors (17869359488).

20422125112 is a wasteful number, since it uses less digits than its factorization.

20422125112 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2552765645 (or 2552765641 counting only the distinct ones).

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

Adding to 20422125112 its reverse (21152122402), we get a palindrome (41574247514).

The spelling of 20422125112 in words is "twenty billion, four hundred twenty-two million, one hundred twenty-five thousand, one hundred twelve".