Search a number
-
+
22021120301 = 25785685293
BaseRepresentation
bin10100100000100011…
…111010000100101101
32002211200121211002012
4110200203322010231
5330044401322201
614041045011005
71406463301625
oct244043720455
962750554065
1022021120301
119380391684
1243269b3a65
1320cc3382cb
1410cc8bb885
1588d4015bb
hex5208fa12d

22021120301 has 4 divisors (see below), whose sum is σ = 22106805852. Its totient is φ = 21935434752.

The previous prime is 22021120283. The next prime is 22021120309. The reversal of 22021120301 is 10302112022.

It is a happy number.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 14469684100 + 7551436201 = 120290^2 + 86899^2 .

It is a cyclic number.

It is not a de Polignac number, because 22021120301 - 214 = 22021103917 is a prime.

It is a super-2 number, since 2×220211203012 (a number of 21 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 (22021120309) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 42842390 + ... + 42842903.

It is an arithmetic number, because the mean of its divisors is an integer number (5526701463).

Almost surely, 222021120301 is an apocalyptic number.

It is an amenable number.

22021120301 is a deficient number, since it is larger than the sum of its proper divisors (85685551).

22021120301 is an equidigital number, since it uses as much as digits as its factorization.

22021120301 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 85685550.

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

Adding to 22021120301 its reverse (10302112022), we get a palindrome (32323232323).

The spelling of 22021120301 in words is "twenty-two billion, twenty-one million, one hundred twenty thousand, three hundred one".

Divisors: 1 257 85685293 22021120301