221771032652152 has 16 divisors (see below), whose sum is σ = 415821115595160. Its totient is φ = 110885401826784.

The previous prime is 221771032652083. The next prime is 221771032652161. The reversal of 221771032652152 is 251256230177122.

It is a super-2 number, since 2×221771032652152² (a number of 29 digits) contains 22 as substring.

It is a congruent 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, 5781583 + ... + 21839614.

Almost surely, 2^{221771032652152} is an apocalyptic number.

It is an amenable number.

221771032652152 is a deficient number, since it is larger than the sum of its proper divisors (194050082943008).

221771032652152 is a wasteful number, since it uses less digits than its factorization.

221771032652152 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 28624830 (or 28624826 counting only the distinct ones).

The product of its (nonzero) digits is 705600, while the sum is 46.

The spelling of 221771032652152 in words is "two hundred twenty-one trillion, seven hundred seventy-one billion, thirty-two million, six hundred fifty-two thousand, one hundred fifty-two".