61421222 has 8 divisors (see below), whose sum is σ = 92168400. Its totient is φ = 30698424.

The previous prime is 61421219. The next prime is 61421237. The reversal of 61421222 is 22212416.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a junction number, because it is equal to n+sod(n) for n = 61421194 and 61421203.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2804 + ... + 11432.

It is an arithmetic number, because the mean of its divisors is an integer number (11521050).

Almost surely, 2^61421222 is an apocalyptic number.

61421222 is a deficient number, since it is larger than the sum of its proper divisors (30747178).

61421222 is a wasteful number, since it uses less digits than its factorization.

61421222 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12190.

The product of its digits is 384, while the sum is 20.

The square root of 61421222 is about 7837.1692593691. The cubic root of 61421222 is about 394.5537276836.

Adding to 61421222 its reverse (22212416), we get a palindrome (83633638).

The spelling of 61421222 in words is "sixty-one million, four hundred twenty-one thousand, two hundred twenty-two".