61222233894 has 16 divisors (see below), whose sum is σ = 123994398720. Its totient is φ = 20149089480.

The previous prime is 61222233889. The next prime is 61222233923. The reversal of 61222233894 is 49833222216.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 64579942 + ... + 64580889.

It is an arithmetic number, because the mean of its divisors is an integer number (7749649920).

Almost surely, 2^61222233894 is an apocalyptic number.

61222233894 is an abundant number, since it is smaller than the sum of its proper divisors (62772164826).

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

61222233894 is a wasteful number, since it uses less digits than its factorization.

61222233894 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 129160915.

The product of its digits is 248832, while the sum is 42.

The spelling of 61222233894 in words is "sixty-one billion, two hundred twenty-two million, two hundred thirty-three thousand, eight hundred ninety-four".