61221202 has 16 divisors (see below), whose sum is σ = 105077952. Its totient is φ = 26205840.

The previous prime is 61221197. The next prime is 61221203. The reversal of 61221202 is 20212216.

It is not an unprimeable number, because it can be changed into a prime (61221203) 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, 12153 + ... + 16435.

It is an arithmetic number, because the mean of its divisors is an integer number (6567372).

Almost surely, 2^61221202 is an apocalyptic number.

61221202 is a deficient number, since it is larger than the sum of its proper divisors (43856750).

61221202 is a wasteful number, since it uses less digits than its factorization.

61221202 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5313.

The product of its (nonzero) digits is 96, while the sum is 16.

The square root of 61221202 is about 7824.3978682069. The cubic root of 61221202 is about 394.1249700202.

Adding to 61221202 its reverse (20212216), we get a palindrome (81433418).

The spelling of 61221202 in words is "sixty-one million, two hundred twenty-one thousand, two hundred two".