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190120101212201 = 412099461345699
BaseRepresentation
bin101011001110100111001001…
…000110001111000000101001
3220221011022012202000112021112
4223032213021012033000221
5144404411431402242301
61512203545130120105
755021503225254006
oct5316471106170051
9827138182015245
10190120101212201
115563a5337936a6
12193a6671280035
1382113302971c4
1434d3c0d4668ad
1516ea6d7e459bb
hexace9c918f029

190120101212201 has 4 divisors (see below), whose sum is σ = 190120562970000. Its totient is φ = 190119639454404.

The previous prime is 190120101212143. The next prime is 190120101212221. The reversal of 190120101212201 is 102212101021091.

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 190120101212201 - 26 = 190120101212137 is a prime.

It is a super-2 number, since 2×1901201012122012 (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 (190120101212221) 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, 230260751 + ... + 231084948.

It is an arithmetic number, because the mean of its divisors is an integer number (47530140742500).

Almost surely, 2190120101212201 is an apocalyptic number.

It is an amenable number.

190120101212201 is a deficient number, since it is larger than the sum of its proper divisors (461757799).

190120101212201 is an equidigital number, since it uses as much as digits as its factorization.

190120101212201 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 461757798.

The product of its (nonzero) digits is 144, while the sum is 23.

Adding to 190120101212201 its reverse (102212101021091), we get a palindrome (292332202233292).

The spelling of 190120101212201 in words is "one hundred ninety trillion, one hundred twenty billion, one hundred one million, two hundred twelve thousand, two hundred one".

Divisors: 1 412099 461345699 190120101212201