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22123012001 = 234720465321
BaseRepresentation
bin10100100110101000…
…100101111110100001
32010002210100110012212
4110212220211332201
5330301442341001
614055124531505
71412141333156
oct244650457641
963083313185
1022123012001
1194229553a2
124354b50b95
132117491b5c
1410dc24222d
1589732b7bb
hex526a25fa1

22123012001 has 8 divisors (see below), whose sum is σ = 23576050944. Its totient is φ = 20710903840.

The previous prime is 22123011959. The next prime is 22123012027. The reversal of 22123012001 is 10021032122.

It is a happy number.

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

It is not a de Polignac number, because 22123012001 - 210 = 22123010977 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (22123012201) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 10231580 + ... + 10233741.

It is an arithmetic number, because the mean of its divisors is an integer number (2947006368).

Almost surely, 222123012001 is an apocalyptic number.

It is an amenable number.

22123012001 is a deficient number, since it is larger than the sum of its proper divisors (1453038943).

22123012001 is a wasteful number, since it uses less digits than its factorization.

22123012001 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20465391.

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

Adding to 22123012001 its reverse (10021032122), we get a palindrome (32144044123).

The spelling of 22123012001 in words is "twenty-two billion, one hundred twenty-three million, twelve thousand, one".

Divisors: 1 23 47 1081 20465321 470702383 961870087 22123012001