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1210212000101 = 13155821597437
BaseRepresentation
bin10001100111000110010…
…000011010000101100101
311021200202202101110120102
4101213012100122011211
5124312003233000401
62323544055113445
7153302116162046
oct21470620320545
94250682343512
101210212000101
1142728013a9a5
12176669672885
138a1791a1510
14428088b48cd
15217314c356b
hex119c641a165

1210212000101 has 8 divisors (see below), whose sum is σ = 1303315776504. Its totient is φ = 1117109730240.

The previous prime is 1210212000097. The next prime is 1210212000163. The reversal of 1210212000101 is 1010002120121.

It can be written as a sum of positive squares in 4 ways, for example, as 3786556225 + 1206425443876 = 61535^2 + 1098374^2 .

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 1210212000101 - 22 = 1210212000097 is a prime.

It is a super-2 number, since 2×12102120001012 (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 (1210212030101) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1726955 + ... + 2324391.

It is an arithmetic number, because the mean of its divisors is an integer number (162914472063).

Almost surely, 21210212000101 is an apocalyptic number.

It is an amenable number.

1210212000101 is a deficient number, since it is larger than the sum of its proper divisors (93103776403).

1210212000101 is a wasteful number, since it uses less digits than its factorization.

1210212000101 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 753271.

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

Adding to 1210212000101 its reverse (1010002120121), we get a palindrome (2220214120222).

The spelling of 1210212000101 in words is "one trillion, two hundred ten billion, two hundred twelve million, one hundred one", and thus it is an aban number.

Divisors: 1 13 155821 597437 2025673 7766681 93093230777 1210212000101