221849151285702 has 16 divisors (see below), whose sum is σ = 443699270217792. Its totient is φ = 73949555820840.

The previous prime is 221849151285679. The next prime is 221849151285709. The reversal of 221849151285702 is 207582151948122.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (221849151285709) 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, 37320988 + ... + 42855039.

It is an arithmetic number, because the mean of its divisors is an integer number (27731204388612).

Almost surely, 2^{221849151285702} is an apocalyptic number.

221849151285702 is an abundant number, since it is smaller than the sum of its proper divisors (221850118932090).

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

221849151285702 is a wasteful number, since it uses less digits than its factorization.

221849151285702 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 80637203.

The product of its (nonzero) digits is 6451200, while the sum is 57.

The spelling of 221849151285702 in words is "two hundred twenty-one trillion, eight hundred forty-nine billion, one hundred fifty-one million, two hundred eighty-five thousand, seven hundred two".