61301221110 has 48 divisors (see below), whose sum is σ = 159592792320. Its totient is φ = 16325493120.

The previous prime is 61301221087. The next prime is 61301221117. The reversal of 61301221110 is 1112210316.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (61301221117) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 379030 + ... + 516009.

It is an arithmetic number, because the mean of its divisors is an integer number (3324849840).

Almost surely, 2^61301221110 is an apocalyptic number.

61301221110 is an abundant number, since it is smaller than the sum of its proper divisors (98291571210).

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

61301221110 is a wasteful number, since it uses less digits than its factorization.

61301221110 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 895813 (or 895810 counting only the distinct ones).

The product of its (nonzero) digits is 72, while the sum is 18.

Adding to 61301221110 its reverse (1112210316), we get a palindrome (62413431426).

The spelling of 61301221110 in words is "sixty-one billion, three hundred one million, two hundred twenty-one thousand, one hundred ten".