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1012220210020 = 22574368117107
BaseRepresentation
bin11101011101011010000…
…01101010101101100100
310120202201100220102012011
432232231001222231210
5113041011333210040
62053001344004004
7133062521552335
oct16565501525544
93522640812164
101012220210020
11360309a13618
12144212600604
13745b4c42546
1436dc53c828c
151b4e44d43ea
hexebad06ab64

1012220210020 has 24 divisors (see below), whose sum is σ = 2128523390784. Its totient is φ = 404343141216.

The previous prime is 1012220209999. The next prime is 1012220210069. The reversal of 1012220210020 is 200120222101.

It is a happy number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 34043694 + ... + 34073413.

It is an arithmetic number, because the mean of its divisors is an integer number (88688474616).

Almost surely, 21012220210020 is an apocalyptic number.

1012220210020 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1012220210020 is an abundant number, since it is smaller than the sum of its proper divisors (1116303180764).

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

1012220210020 is a wasteful number, since it uses less digits than its factorization.

1012220210020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 68117859 (or 68117857 counting only the distinct ones).

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

Adding to 1012220210020 its reverse (200120222101), we get a palindrome (1212340432121).

The spelling of 1012220210020 in words is "one trillion, twelve billion, two hundred twenty million, two hundred ten thousand, twenty".

Divisors: 1 2 4 5 10 20 743 1486 2972 3715 7430 14860 68117107 136234214 272468428 340585535 681171070 1362342140 50611010501 101222021002 202444042004 253055052505 506110105010 1012220210020