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121422402001 = 538219278743
BaseRepresentation
bin111000100010101010…
…1101101000111010001
3102121102010200010020001
41301011111231013101
53442133113331001
6131440343250001
711525650250005
oct1610525550721
9377363603201
10121422402001
114754986486a
121b648149901
13b5b0aaa664
145c3c20a705
153259cc3001
hex1c4556d1d1

121422402001 has 8 divisors (see below), whose sum is σ = 123728886720. Its totient is φ = 119116491312.

The previous prime is 121422401977. The next prime is 121422402011. The reversal of 121422402001 is 100204224121.

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 121422402001 - 231 = 119274918353 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 121422402001.

It is not an unprimeable number, because it can be changed into a prime (121422402011) 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, 296236 + ... + 574978.

It is an arithmetic number, because the mean of its divisors is an integer number (15466110840).

Almost surely, 2121422402001 is an apocalyptic number.

It is an amenable number.

121422402001 is a deficient number, since it is larger than the sum of its proper divisors (2306484719).

121422402001 is an equidigital number, since it uses as much as digits as its factorization.

121422402001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 287015.

The product of its (nonzero) digits is 256, while the sum is 19.

Adding to 121422402001 its reverse (100204224121), we get a palindrome (221626626122).

The spelling of 121422402001 in words is "one hundred twenty-one billion, four hundred twenty-two million, four hundred two thousand, one".

Divisors: 1 53 8219 278743 435607 14773379 2290988717 121422402001