47722122 has 40 divisors (see below), whose sum is σ = 122211936. Its totient is φ = 13634568.

The previous prime is 47722109. The next prime is 47722141. The reversal of 47722122 is 22122774.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is an unprimeable number.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 19908 + ... + 22175.

Almost surely, 2^47722122 is an apocalyptic number.

47722122 is a gapful number since it is divisible by the number (42) formed by its first and last digit.

47722122 is an abundant number, since it is smaller than the sum of its proper divisors (74489814).

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

47722122 is a wasteful number, since it uses less digits than its factorization.

47722122 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 42104 (or 42095 counting only the distinct ones).

The product of its digits is 3136, while the sum is 27.

The square root of 47722122 is about 6908.1200047480. The cubic root of 47722122 is about 362.7214583376.

Adding to 47722122 its reverse (22122774), we get a palindrome (69844896).

The spelling of 47722122 in words is "forty-seven million, seven hundred twenty-two thousand, one hundred twenty-two".