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1213022210133 = 3404340736711
BaseRepresentation
bin10001101001101101110…
…000100000100001010101
311021222000121021221000110
4101221231300200201111
5124333232141211013
62325131003433233
7153431551443156
oct21515560404125
94258017257013
101213022210133
11428492461328
12177112825819
138a506464aa6
14429d3bd592d
15218480782c3
hex11a6dc20855

1213022210133 has 4 divisors (see below), whose sum is σ = 1617362946848. Its totient is φ = 808681473420.

The previous prime is 1213022210087. The next prime is 1213022210137. The reversal of 1213022210133 is 3310122203121.

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 not a de Polignac number, because 1213022210133 - 29 = 1213022209621 is a prime.

It is a super-4 number, since 4×12130222101334 (a number of 49 digits) contains 4444 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 (1213022210137) 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 3 ways as a sum of consecutive naturals, for example, 202170368353 + ... + 202170368358.

It is an arithmetic number, because the mean of its divisors is an integer number (404340736712).

Almost surely, 21213022210133 is an apocalyptic number.

It is an amenable number.

1213022210133 is a deficient number, since it is larger than the sum of its proper divisors (404340736715).

1213022210133 is an equidigital number, since it uses as much as digits as its factorization.

1213022210133 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 404340736714.

The product of its (nonzero) digits is 432, while the sum is 21.

Adding to 1213022210133 its reverse (3310122203121), we get a palindrome (4523144413254).

The spelling of 1213022210133 in words is "one trillion, two hundred thirteen billion, twenty-two million, two hundred ten thousand, one hundred thirty-three".

Divisors: 1 3 404340736711 1213022210133