65221994202 has 8 divisors (see below), whose sum is σ = 130443988416. Its totient is φ = 21740664732.

The previous prime is 65221994191. The next prime is 65221994213. The reversal of 65221994202 is 20249912256.

It is an interprime number because it is at equal distance from previous prime (65221994191) and next prime (65221994213).

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

65221994202 is an admirable 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, 5435166178 + ... + 5435166189.

It is an arithmetic number, because the mean of its divisors is an integer number (16305498552).

Almost surely, 2^65221994202 is an apocalyptic number.

65221994202 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

65221994202 is a wasteful number, since it uses less digits than its factorization.

65221994202 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10870332372.

The product of its (nonzero) digits is 155520, while the sum is 42.

The spelling of 65221994202 in words is "sixty-five billion, two hundred twenty-one million, nine hundred ninety-four thousand, two hundred two".