61701222 has 64 divisors (see below), whose sum is σ = 141834240. Its totient is φ = 17721600.

The previous prime is 61701209. The next prime is 61701239. The reversal of 61701222 is 22210716.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 108154 + ... + 108722.

It is an arithmetic number, because the mean of its divisors is an integer number (2216160).

Almost surely, 2^61701222 is an apocalyptic number.

61701222 is a gapful number since it is divisible by the number (62) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 61701222, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (70917120).

61701222 is an abundant number, since it is smaller than the sum of its proper divisors (80133018).

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

61701222 is a wasteful number, since it uses less digits than its factorization.

61701222 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 669.

The product of its (nonzero) digits is 336, while the sum is 21.

The square root of 61701222 is about 7855.0125397736. The cubic root of 61701222 is about 395.1523676454.

Adding to 61701222 its reverse (22210716), we get a palindrome (83911938).

The spelling of 61701222 in words is "sixty-one million, seven hundred one thousand, two hundred twenty-two".