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121012212000101 = 196369063789479
BaseRepresentation
bin11011100000111101011001…
…111010001110010101100101
3120212110122200010020100020112
4123200331121322032111211
5111330131002233000401
61105212124232542405
734326562265214062
oct3340753172162545
9525418603210215
10121012212000101
1135615a9998a574
12116a4b88b51a05
13526a530756376
1421c504531bc69
15decc130673bb
hex6e0f59e8e565

121012212000101 has 4 divisors (see below), whose sum is σ = 127381275789600. Its totient is φ = 114643148210604.

The previous prime is 121012212000091. The next prime is 121012212000143. The reversal of 121012212000101 is 101000212210121.

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 121012212000101 - 238 = 120737334093157 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 (121012212000191) 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, 3184531894721 + ... + 3184531894758.

It is an arithmetic number, because the mean of its divisors is an integer number (31845318947400).

Almost surely, 2121012212000101 is an apocalyptic number.

It is an amenable number.

121012212000101 is a deficient number, since it is larger than the sum of its proper divisors (6369063789499).

121012212000101 is an equidigital number, since it uses as much as digits as its factorization.

121012212000101 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6369063789498.

The product of its (nonzero) digits is 16, while the sum is 14.

Adding to 121012212000101 its reverse (101000212210121), we get a palindrome (222012424210222).

The spelling of 121012212000101 in words is "one hundred twenty-one trillion, twelve billion, two hundred twelve million, one hundred one", and thus it is an aban number.

Divisors: 1 19 6369063789479 121012212000101