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22001102213 = 291574832221
BaseRepresentation
bin10100011111010111…
…100010110110000101
32002210021221210102112
4110133113202312011
5330024240232323
614035051550405
71406131166066
oct243727426605
962707853375
1022001102213
119370059802
12432015b405
1320c814989c
1410c9d8a56d
1588b79a178
hex51f5e2d85

22001102213 has 8 divisors (see below), whose sum is σ = 22904732280. Its totient is φ = 21107136960.

The previous prime is 22001102197. The next prime is 22001102251. The reversal of 22001102213 is 31220110022.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 367987489 + 21633114724 = 19183^2 + 147082^2 .

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 22001102213 - 24 = 22001102197 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 (22001162213) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2411558 + ... + 2420663.

It is an arithmetic number, because the mean of its divisors is an integer number (2863091535).

Almost surely, 222001102213 is an apocalyptic number.

It is an amenable number.

22001102213 is a deficient number, since it is larger than the sum of its proper divisors (903630067).

22001102213 is a wasteful number, since it uses less digits than its factorization.

22001102213 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4832407.

The product of its (nonzero) digits is 48, while the sum is 14.

Adding to 22001102213 its reverse (31220110022), we get a palindrome (53221212235).

The spelling of 22001102213 in words is "twenty-two billion, one million, one hundred two thousand, two hundred thirteen".

Divisors: 1 29 157 4553 4832221 140134409 758658697 22001102213