Search a number
-
+
221021022122093 = 1913264918769517
BaseRepresentation
bin110010010000010001110111…
…100000101111000001101101
31001222120101220001100102212202
4302100101313200233001231
5212432202023130401333
62102023353355111245
764361145653231234
oct6220216740570155
91058511801312782
10221021022122093
1164473541a887a6
1220957431142525
139643267bca53b
143c81690239b1b
151a843e60085e8
hexc9047782f06d

221021022122093 has 8 divisors (see below), whose sum is σ = 232653909417120. Its totient is φ = 209388155019120.

The previous prime is 221021022122081. The next prime is 221021022122113. The reversal of 221021022122093 is 390221220120122.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-221021022122093 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (221021022122053) 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, 20818571 + ... + 29588087.

It is an arithmetic number, because the mean of its divisors is an integer number (29081738677140).

Almost surely, 2221021022122093 is an apocalyptic number.

It is an amenable number.

221021022122093 is a deficient number, since it is larger than the sum of its proper divisors (11632887295027).

221021022122093 is a wasteful number, since it uses less digits than its factorization.

221021022122093 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10096027.

The product of its (nonzero) digits is 3456, while the sum is 29.

The spelling of 221021022122093 in words is "two hundred twenty-one trillion, twenty-one billion, twenty-two million, one hundred twenty-two thousand, ninety-three".

Divisors: 1 19 1326491 8769517 25203329 166620823 11632685374847 221021022122093