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1220020220012 = 221141724393371
BaseRepresentation
bin10001110000001110110…
…111110011000001101100
311022122002022021122212112
4101300032313303001230
5124442100134020022
62332245231223152
7154100144523266
oct21601667630154
94278068248775
101220020220012
11430453676770
12178546377ab8
138b080221c39
1443099394b36
1521b075ec8e2
hex11c0edf306c

1220020220012 has 48 divisors (see below), whose sum is σ = 2386292517504. Its totient is φ = 540948432000.

The previous prime is 1220020219961. The next prime is 1220020220021. The reversal of 1220020220012 is 2100220200221.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 13019687 + ... + 13113057.

It is an arithmetic number, because the mean of its divisors is an integer number (49714427448).

Almost surely, 21220020220012 is an apocalyptic number.

It is an amenable number.

1220020220012 is a deficient number, since it is larger than the sum of its proper divisors (1166272297492).

1220020220012 is a wasteful number, since it uses less digits than its factorization.

1220020220012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 100670 (or 100668 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 14.

Adding to 1220020220012 its reverse (2100220200221), we get a palindrome (3320240420233).

The spelling of 1220020220012 in words is "one trillion, two hundred twenty billion, twenty million, two hundred twenty thousand, twelve".

Divisors: 1 2 4 11 22 41 44 82 164 451 902 1804 7243 14486 28972 79673 93371 159346 186742 296963 318692 373484 593926 1027081 1187852 2054162 3266593 3828211 4108324 6533186 7656422 13066372 15312844 42110321 84220642 168441284 676286153 1352572306 2705144612 7439147683 14878295366 27727732273 29756590732 55455464546 110910929092 305005055003 610010110006 1220020220012