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120220221002221 = 17199134772636831
BaseRepresentation
bin11011010101011011110011…
…100100010101000111101101
3120202122221101220110001202001
4123111123303210111013231
5111224142003034032341
61103404223533132301
734215424101624334
oct3325336344250755
9522587356401661
10120220221002221
113534012269169a
121159759892a091
135210944b52402
142198992924d1b
15dd730ce4cd31
hex6d56f39151ed

120220221002221 has 16 divisors (see below), whose sum is σ = 127941198105600. Its totient is φ = 112571461981440.

The previous prime is 120220221002207. The next prime is 120220221002237. The reversal of 120220221002221 is 122200122022021.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-120220221002221 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (120220221002201) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 44274276 + ... + 46911106.

It is an arithmetic number, because the mean of its divisors is an integer number (7996324881600).

Almost surely, 2120220221002221 is an apocalyptic number.

It is an amenable number.

120220221002221 is a deficient number, since it is larger than the sum of its proper divisors (7720977103379).

120220221002221 is a wasteful number, since it uses less digits than its factorization.

120220221002221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2650524.

The product of its (nonzero) digits is 256, while the sum is 19.

Adding to 120220221002221 its reverse (122200122022021), we get a palindrome (242420343024242).

The spelling of 120220221002221 in words is "one hundred twenty trillion, two hundred twenty billion, two hundred twenty-one million, two thousand, two hundred twenty-one".

Divisors: 1 17 199 3383 13477 229109 2636831 2681923 44826127 45592691 524729369 8920399273 35536571387 604121713579 7071777706013 120220221002221