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10223111331020 = 22571729433444607
BaseRepresentation
bin1001010011000100000011…
…1010110101110011001100
31100012022122012120012100202
42110301000322311303030
52314443413000043040
633424233231113032
72103411141355160
oct224610072656314
940168565505322
1010223111331020
113291662915295
121191383372778
1359205c6169a3
14274b307dcca0
1512add7369015
hex94c40eb5ccc

10223111331020 has 192 divisors, whose sum is σ = 27499545722880. Its totient is φ = 3111057911808.

The previous prime is 10223111330987. The next prime is 10223111331023. The reversal of 10223111331020 is 2013311132201.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (20).

It is a junction number, because it is equal to n+sod(n) for n = 10223111330983 and 10223111331001.

It is not an unprimeable number, because it can be changed into a prime (10223111331023) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 1245557 + ... + 4690163.

It is an arithmetic number, because the mean of its divisors is an integer number (143226800640).

Almost surely, 210223111331020 is an apocalyptic number.

10223111331020 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 10223111331020, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (13749772861440).

10223111331020 is an abundant number, since it is smaller than the sum of its proper divisors (17276434391860).

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

10223111331020 is a wasteful number, since it uses less digits than its factorization.

10223111331020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3444712 (or 3444710 counting only the distinct ones).

The product of its (nonzero) digits is 216, while the sum is 20.

Adding to 10223111331020 its reverse (2013311132201), we get a palindrome (12236422463221).

The spelling of 10223111331020 in words is "ten trillion, two hundred twenty-three billion, one hundred eleven million, three hundred thirty-one thousand, twenty".