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122001111021001 = 979112460536311
BaseRepresentation
bin11011101111010110011000…
…111000100111010111001001
3120222222012012012012121012111
4123233112120320213113021
5111442331233410133001
61111250311530542321
734461201156206422
oct3357263070472711
9528865165177174
10122001111021001
1135967420677573
12118247712979a1
13530c869c00204
14221ac572ca649
15e187dee44851
hex6ef598e275c9

122001111021001 has 4 divisors (see below), whose sum is σ = 122013571567104. Its totient is φ = 121988650474900.

The previous prime is 122001111020969. The next prime is 122001111021007. The reversal of 122001111021001 is 100120111100221.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 122001111021001 - 25 = 122001111020969 is a prime.

It is a super-2 number, since 2×1220011110210012 (a number of 29 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (122001111021007) 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, 6230258365 + ... + 6230277946.

It is an arithmetic number, because the mean of its divisors is an integer number (30503392891776).

Almost surely, 2122001111021001 is an apocalyptic number.

It is an amenable number.

122001111021001 is a deficient number, since it is larger than the sum of its proper divisors (12460546103).

122001111021001 is an equidigital number, since it uses as much as digits as its factorization.

122001111021001 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12460546102.

The product of its (nonzero) digits is 8, while the sum is 13.

Adding to 122001111021001 its reverse (100120111100221), we get a palindrome (222121222121222).

The spelling of 122001111021001 in words is "one hundred twenty-two trillion, one billion, one hundred eleven million, twenty-one thousand, one".

Divisors: 1 9791 12460536311 122001111021001