20422125152 has 48 divisors (see below), whose sum is σ = 47235100752. Its totient is φ = 8568721920.

The previous prime is 20422125137. The next prime is 20422125169. The reversal of 20422125152 is 25152122402.

It is a Harshad number since it is a multiple of its sum of digits (26).

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, 2226863 + ... + 2236014.

It is an arithmetic number, because the mean of its divisors is an integer number (984064599).

Almost surely, 2^20422125152 is an apocalyptic number.

20422125152 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

It is an amenable number.

20422125152 is an abundant number, since it is smaller than the sum of its proper divisors (26812975600).

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

20422125152 is a wasteful number, since it uses less digits than its factorization.

20422125152 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4462911 (or 4462903 counting only the distinct ones).

The product of its (nonzero) digits is 3200, while the sum is 26.

Adding to 20422125152 its reverse (25152122402), we get a palindrome (45574247554).

The spelling of 20422125152 in words is "twenty billion, four hundred twenty-two million, one hundred twenty-five thousand, one hundred fifty-two".