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1210112102101 = 72521119339733
BaseRepresentation
bin10001100111000000010…
…011010100111011010101
311021200111210102010021111
4101213000103110323111
5124311302144231401
62323530130015021
7153266464103200
oct21470023247325
94250453363244
101210112102101
11427229809071
12176640117471
138a161595286
14427d950c937
152172783de51
hex119c04d4ed5

1210112102101 has 24 divisors (see below), whose sum is σ = 1411601050584. Its totient is φ = 1034354280960.

The previous prime is 1210112102053. The next prime is 1210112102159. The reversal of 1210112102101 is 1012012110121.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 348465896100 + 861646206001 = 590310^2 + 928249^2 .

It is not a de Polignac number, because 1210112102101 - 29 = 1210112101589 is a prime.

It is a super-2 number, since 2×12101121021012 (a number of 25 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1210112102701) 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 23 ways as a sum of consecutive naturals, for example, 30436231 + ... + 30475963.

It is an arithmetic number, because the mean of its divisors is an integer number (58816710441).

Almost surely, 21210112102101 is an apocalyptic number.

It is an amenable number.

1210112102101 is a deficient number, since it is larger than the sum of its proper divisors (201488948483).

1210112102101 is a wasteful number, since it uses less digits than its factorization.

1210112102101 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 41461 (or 41454 counting only the distinct ones).

The product of its (nonzero) digits is 8, while the sum is 13.

Adding to 1210112102101 its reverse (1012012110121), we get a palindrome (2222124212222).

The spelling of 1210112102101 in words is "one trillion, two hundred ten billion, one hundred twelve million, one hundred two thousand, one hundred one".

Divisors: 1 7 49 521 1193 3647 8351 25529 39733 58457 278131 621553 1946917 4350871 20700893 30456097 47401469 144906251 331810283 1014343757 2322671981 24696165349 172873157443 1210112102101