61227222 has 16 divisors (see below), whose sum is σ = 139948032. Its totient is φ = 17493480.

The previous prime is 61227211. The next prime is 61227223. The reversal of 61227222 is 22272216.

It is a nude number because it is divisible by every one of its digits.

It is a junction number, because it is equal to n+sod(n) for n = 61227192 and 61227201.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (61227223) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 728854 + ... + 728937.

It is an arithmetic number, because the mean of its divisors is an integer number (8746752).

Almost surely, 2^61227222 is an apocalyptic number.

61227222 is an abundant number, since it is smaller than the sum of its proper divisors (78720810).

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

61227222 is a wasteful number, since it uses less digits than its factorization.

61227222 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1457803.

The product of its digits is 1344, while the sum is 24.

The square root of 61227222 is about 7824.7825528892. The cubic root of 61227222 is about 394.1378879553.

Adding to 61227222 its reverse (22272216), we get a palindrome (83499438).

The spelling of 61227222 in words is "sixty-one million, two hundred twenty-seven thousand, two hundred twenty-two".