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121012112022001 = 163742405595227
BaseRepresentation
bin11011100000111101010011…
…111100110101100111110001
3120212110122102011002221001221
4123200331103330311213301
5111330130301134201001
61105212110302025041
734326556642342534
oct3340752374654761
9525418364087057
10121012112022001
1135615a48503542
12116a4b5b578181
13526a515b1c825
1421c5035d34a1b
15decc093b91a1
hex6e0f53f359f1

121012112022001 has 4 divisors (see below), whose sum is σ = 121754517617392. Its totient is φ = 120269706426612.

The previous prime is 121012112021959. The next prime is 121012112022007. The reversal of 121012112022001 is 100220211210121.

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 121012112022001 - 215 = 121012111989233 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (121012112022007) 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, 371202797451 + ... + 371202797776.

It is an arithmetic number, because the mean of its divisors is an integer number (30438629404348).

Almost surely, 2121012112022001 is an apocalyptic number.

It is an amenable number.

121012112022001 is a deficient number, since it is larger than the sum of its proper divisors (742405595391).

121012112022001 is an equidigital number, since it uses as much as digits as its factorization.

121012112022001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 742405595390.

The product of its (nonzero) digits is 32, while the sum is 16.

Adding to 121012112022001 its reverse (100220211210121), we get a palindrome (221232323232122).

The spelling of 121012112022001 in words is "one hundred twenty-one trillion, twelve billion, one hundred twelve million, twenty-two thousand, one".

Divisors: 1 163 742405595227 121012112022001