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222011001002020 = 225401142319453387
BaseRepresentation
bin110010011110101011110110…
…110110011101100000100100
31002010002001012101021012221111
4302132223312312131200210
5213044412012224031040
62104102240150154404
764522523365662616
oct6236536666354044
91063061171235844
10222011001002020
116481537828387a
1220a97277052a04
1396b5716cc2719
143cb75657c2db6
151aa0037adddea
hexc9eaf6d9d824

222011001002020 has 48 divisors (see below), whose sum is σ = 467714228260608. Its totient is φ = 88520687654400.

The previous prime is 222011001001903. The next prime is 222011001002029. The reversal of 222011001002020 is 20200100110222.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (222011001002029) 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, 1685767 + ... + 21139153.

It is an arithmetic number, because the mean of its divisors is an integer number (9744046422096).

Almost surely, 2222011001002020 is an apocalyptic number.

222011001002020 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

222011001002020 is an abundant number, since it is smaller than the sum of its proper divisors (245703227258588).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

222011001002020 is a wasteful number, since it uses less digits than its factorization.

222011001002020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19455220 (or 19455218 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 13.

Adding to 222011001002020 its reverse (20200100110222), we get a palindrome (242211101112242).

The spelling of 222011001002020 in words is "two hundred twenty-two trillion, eleven billion, one million, two thousand, twenty".

Divisors: 1 2 4 5 10 20 401 802 1423 1604 2005 2846 4010 5692 7115 8020 14230 28460 570623 1141246 2282492 2853115 5706230 11412460 19453387 38906774 77813548 97266935 194533870 389067740 7800808187 15601616374 27682169701 31203232748 39004040935 55364339402 78008081870 110728678804 138410848505 156016163740 276821697010 553643394020 11100550050101 22201100100202 44402200200404 55502750250505 111005500501010 222011001002020