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122121120010 = 2512212112001
BaseRepresentation
bin111000110111011111…
…1000110100100001010
3102200012211102200010211
41301232333012210022
54000101001320020
6132033543231334
711552163251521
oct1615677064412
9380184380124
10122121120010
1147878208a6a
121b80214854a
13b69278b376
145ca6d2d4b8
15329b2e085a
hex1c6efc690a

122121120010 has 8 divisors (see below), whose sum is σ = 219818016036. Its totient is φ = 48848448000.

The previous prime is 122121119993. The next prime is 122121120013. The reversal of 122121120010 is 10021121221.

It can be written as a sum of positive squares in 2 ways, for example, as 120580479009 + 1540641001 = 347247^2 + 39251^2 .

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

It is not an unprimeable number, because it can be changed into a prime (122121120013) 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, 6106055991 + ... + 6106056010.

Almost surely, 2122121120010 is an apocalyptic number.

122121120010 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

122121120010 is a deficient number, since it is larger than the sum of its proper divisors (97696896026).

122121120010 is a wasteful number, since it uses less digits than its factorization.

122121120010 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12212112008.

The product of its (nonzero) digits is 16, while the sum is 13.

Adding to 122121120010 its reverse (10021121221), we get a palindrome (132142241231).

The spelling of 122121120010 in words is "one hundred twenty-two billion, one hundred twenty-one million, one hundred twenty thousand, ten".

Divisors: 1 2 5 10 12212112001 24424224002 61060560005 122121120010