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101022212201 = 607371663273
BaseRepresentation
bin101111000010101100…
…1001010000001101001
3100122202102010002202212
41132011121022001221
53123343141242301
6114224200334505
710204265431001
oct1360531120151
9318672102685
10101022212201
1139930450279
12176b4174435
1396ac525c31
144c64b11001
152963d574bb
hex178564a069

101022212201 has 4 divisors (see below), whose sum is σ = 101023936212. Its totient is φ = 101020488192.

The previous prime is 101022212191. The next prime is 101022212219. The reversal of 101022212201 is 102212220101.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 102212220101 = 201307507743.

It can be written as a sum of positive squares in 2 ways, for example, as 40838347225 + 60183864976 = 202085^2 + 245324^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-101022212201 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (101022215201) 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, 770900 + ... + 892373.

It is an arithmetic number, because the mean of its divisors is an integer number (25255984053).

Almost surely, 2101022212201 is an apocalyptic number.

It is an amenable number.

101022212201 is a deficient number, since it is larger than the sum of its proper divisors (1724011).

101022212201 is an equidigital number, since it uses as much as digits as its factorization.

101022212201 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1724010.

The product of its (nonzero) digits is 32, while the sum is 14.

Adding to 101022212201 its reverse (102212220101), we get a palindrome (203234432302).

The spelling of 101022212201 in words is "one hundred one billion, twenty-two million, two hundred twelve thousand, two hundred one".

Divisors: 1 60737 1663273 101022212201