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1212120200122 = 21346620007697
BaseRepresentation
bin10001101000110111111…
…111100111001110111010
311021212200202000001220021
4101220313333213032322
5124324410232400442
62324501302321054
7153400316463316
oct21506777471672
94255622001807
101212120200122
1142806a286907
12176b0072918a
138a3c1616560
144294a0b4b46
15217e3ca0e67
hex11a37fe73ba

1212120200122 has 8 divisors (see below), whose sum is σ = 1958040323316. Its totient is φ = 559440092352.

The previous prime is 1212120200117. The next prime is 1212120200129. The reversal of 1212120200122 is 2210020212121.

Adding to 1212120200122 its reverse (2210020212121), we get a palindrome (3422140412243).

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 955680252921 + 256439947201 = 977589^2 + 506399^2 .

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

It is a junction number, because it is equal to n+sod(n) for n = 1212120200096 and 1212120200105.

It is not an unprimeable number, because it can be changed into a prime (1212120200129) 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, 23310003823 + ... + 23310003874.

Almost surely, 21212120200122 is an apocalyptic number.

1212120200122 is a deficient number, since it is larger than the sum of its proper divisors (745920123194).

1212120200122 is a wasteful number, since it uses less digits than its factorization.

1212120200122 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 46620007712.

The product of its (nonzero) digits is 64, while the sum is 16.

The spelling of 1212120200122 in words is "one trillion, two hundred twelve billion, one hundred twenty million, two hundred thousand, one hundred twenty-two".