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1212210120201 = 3518977870503
BaseRepresentation
bin10001101000111101010…
…110101000011000001001
311021212221000012111001120
4101220331112220120021
5124330101242321301
62324514233505453
7153402461004063
oct21507526503011
94255830174046
101212210120201
11428106013123
12176b26872289
138a40713acc2
1442958000733
15217ebb13e36
hex11a3d5a8609

1212210120201 has 8 divisors (see below), whose sum is σ = 1616591663040. Its totient is φ = 807984328752.

The previous prime is 1212210120193. The next prime is 1212210120211. The reversal of 1212210120201 is 1020210122121.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 1212210120201 - 23 = 1212210120193 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1212210120211) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 38919685 + ... + 38950818.

It is an arithmetic number, because the mean of its divisors is an integer number (202073957880).

Almost surely, 21212210120201 is an apocalyptic number.

It is an amenable number.

1212210120201 is a deficient number, since it is larger than the sum of its proper divisors (404381542839).

1212210120201 is an equidigital number, since it uses as much as digits as its factorization.

1212210120201 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 77875695.

The product of its (nonzero) digits is 32, while the sum is 15.

Adding to 1212210120201 its reverse (1020210122121), we get a palindrome (2232420242322).

The spelling of 1212210120201 in words is "one trillion, two hundred twelve billion, two hundred ten million, one hundred twenty thousand, two hundred one".

Divisors: 1 3 5189 15567 77870503 233611509 404070040067 1212210120201