61102228 has 12 divisors (see below), whose sum is σ = 116649792. Its totient is φ = 27773720.

The previous prime is 61102219. The next prime is 61102231. The reversal of 61102228 is 82220116.

It is a Harshad number since it is a multiple of its sum of digits (22).

It is a junction number, because it is equal to n+sod(n) for n = 61102199 and 61102208.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 694300 + ... + 694387.

It is an arithmetic number, because the mean of its divisors is an integer number (9720816).

Almost surely, 2^61102228 is an apocalyptic number.

It is an amenable number.

61102228 is a deficient number, since it is larger than the sum of its proper divisors (55547564).

61102228 is a wasteful number, since it uses less digits than its factorization.

61102228 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1388702 (or 1388700 counting only the distinct ones).

The product of its (nonzero) digits is 384, while the sum is 22.

The square root of 61102228 is about 7816.7914133614. The cubic root of 61102228 is about 393.8694973495.

It can be divided in two parts, 6110 and 2228, that added together give a palindrome (8338).

The spelling of 61102228 in words is "sixty-one million, one hundred two thousand, two hundred twenty-eight".