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122010122121001 = 154002779225963
BaseRepresentation
bin11011101111011110110001…
…111111001110111100101001
3121000000001110012011220112221
4123233132301333032330221
5111443003212230333001
61111254402030034041
734461640365251122
oct3357366177167451
9530001405156487
10122010122121001
113597022515a354
1211826467048921
135310674a6894a
14221b46dd91049
15e18b6b0b51a1
hex6ef7b1fcef29

122010122121001 has 4 divisors (see below), whose sum is σ = 122010202886992. Its totient is φ = 122010041355012.

The previous prime is 122010122120993. The next prime is 122010122121047. The reversal of 122010122121001 is 100121221010221.

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 122010122121001 - 23 = 122010122120993 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (122010122121101) 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, 38072955 + ... + 41153008.

It is an arithmetic number, because the mean of its divisors is an integer number (30502550721748).

Almost surely, 2122010122121001 is an apocalyptic number.

It is an amenable number.

122010122121001 is a deficient number, since it is larger than the sum of its proper divisors (80765991).

122010122121001 is an equidigital number, since it uses as much as digits as its factorization.

122010122121001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 80765990.

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

Adding to 122010122121001 its reverse (100121221010221), we get a palindrome (222131343131222).

The spelling of 122010122121001 in words is "one hundred twenty-two trillion, ten billion, one hundred twenty-two million, one hundred twenty-one thousand, one".

Divisors: 1 1540027 79225963 122010122121001