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101212020101 = 892834018423
BaseRepresentation
bin101111001000010110…
…1001101110110000101
3100200020122021100021002
41132100231031312011
53124240234120401
6114255100503045
710212061655543
oct1362055156605
9320218240232
10101212020101
1139a18601805
121774784aa85
13970c9520ba
144c81ddcd93
15297584ba6b
hex1790b4dd85

101212020101 has 8 divisors (see below), whose sum is σ = 102710917440. Its totient is φ = 99721160352.

The previous prime is 101212020089. The next prime is 101212020127. The reversal of 101212020101 is 101020212101.

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 101212020101 - 230 = 100138278277 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (101212028101) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1984025 + ... + 2034398.

It is an arithmetic number, because the mean of its divisors is an integer number (12838864680).

Almost surely, 2101212020101 is an apocalyptic number.

It is an amenable number.

101212020101 is a deficient number, since it is larger than the sum of its proper divisors (1498897339).

101212020101 is an equidigital number, since it uses as much as digits as its factorization.

101212020101 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4018795.

The product of its (nonzero) digits is 8, while the sum is 11.

Adding to 101212020101 its reverse (101020212101), we get a palindrome (202232232202).

The spelling of 101212020101 in words is "one hundred one billion, two hundred twelve million, twenty thousand, one hundred one".

Divisors: 1 89 283 25187 4018423 357639647 1137213709 101212020101