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2221302220231 = 97721371063919
BaseRepresentation
bin100000010100101111111…
…011100000010111000111
321212100120101000110001011
4200110233323200113013
5242343211332021411
64420241355343051
7316324640224303
oct40245773402707
97770511013034
102221302220231
1178705a215376
122ba605751a87
13131610c92893
1479723b94d03
153cbab69ac21
hex2052fee05c7

2221302220231 has 8 divisors (see below), whose sum is σ = 2224618418880. Its totient is φ = 2217988155648.

The previous prime is 2221302220213. The next prime is 2221302220237. The reversal of 2221302220231 is 1320222031222.

2221302220231 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is a cyclic number.

It is not a de Polignac number, because 2221302220231 - 221 = 2221300123079 is a prime.

It is a super-2 number, since 2×22213022202312 (a number of 25 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2221302220237) 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, 1555890 + ... + 2619808.

It is an arithmetic number, because the mean of its divisors is an integer number (278077302360).

Almost surely, 22221302220231 is an apocalyptic number.

2221302220231 is a deficient number, since it is larger than the sum of its proper divisors (3316198649).

2221302220231 is a wasteful number, since it uses less digits than its factorization.

2221302220231 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1067033.

The product of its (nonzero) digits is 1152, while the sum is 22.

Adding to 2221302220231 its reverse (1320222031222), we get a palindrome (3541524251453).

The spelling of 2221302220231 in words is "two trillion, two hundred twenty-one billion, three hundred two million, two hundred twenty thousand, two hundred thirty-one".

Divisors: 1 977 2137 1063919 2087849 1039448863 2273594903 2221302220231