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120222011200021 = 387338331037987
BaseRepresentation
bin11011010101011101011110…
…010001011001001000010101
3120202200010000200000112110021
4123111131132101121020111
5111224204134331400041
61103405121323225141
734215516340225033
oct3325353621311025
9522603020015407
10120222011200021
1135340961160805
12115979b83781b1
135210b6b9bc953
142198ac25a9553
15dd73b51bbcd1
hex6d575e459215

120222011200021 has 4 divisors (see below), whose sum is σ = 120222046111392. Its totient is φ = 120221976288652.

The previous prime is 120222011199931. The next prime is 120222011200097. The reversal of 120222011200021 is 120002110222021.

It is a happy number.

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 120222011200021 - 223 = 120222002811413 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 120222011199968 and 120222011200004.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (120222011200121) 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, 11645611 + ... + 19392376.

It is an arithmetic number, because the mean of its divisors is an integer number (30055511527848).

Almost surely, 2120222011200021 is an apocalyptic number.

It is an amenable number.

120222011200021 is a deficient number, since it is larger than the sum of its proper divisors (34911371).

120222011200021 is an equidigital number, since it uses as much as digits as its factorization.

120222011200021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 34911370.

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

Adding to 120222011200021 its reverse (120002110222021), we get a palindrome (240224121422042).

The spelling of 120222011200021 in words is "one hundred twenty trillion, two hundred twenty-two billion, eleven million, two hundred thousand, twenty-one".

Divisors: 1 3873383 31037987 120222011200021