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12020020221000 = 23353111790723623
BaseRepresentation
bin1010111011101010000100…
…0010010001010001001000
31120120002202212122201001010
42232322201002101101020
53033414000134033000
641321530540523520
72350263210045531
oct256724102212110
946502685581033
1012020020221000
1139147310651a0
1214216885505a0
136926383273bc
142d7ab4849688
1515ca05832d50
hexaeea1091448

12020020221000 has 512 divisors, whose sum is σ = 43367948881920. Its totient is φ = 2739396096000.

The previous prime is 12020020220993. The next prime is 12020020221037. The reversal of 12020020221000 is 12202002021.

It is a super-2 number, since 2×120200202210002 (a number of 27 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (12).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 127 ways as a sum of consecutive naturals, for example, 508815189 + ... + 508838811.

It is an arithmetic number, because the mean of its divisors is an integer number (84703025160).

Almost surely, 212020020221000 is an apocalyptic number.

12020020221000 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 12020020221000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (21683974440960).

12020020221000 is an abundant number, since it is smaller than the sum of its proper divisors (31347928660920).

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

12020020221000 is a wasteful number, since it uses less digits than its factorization.

12020020221000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 24582 (or 24568 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 12.

Adding to 12020020221000 its reverse (12202002021), we get a palindrome (12032222223021).

The spelling of 12020020221000 in words is "twelve trillion, twenty billion, twenty million, two hundred twenty-one thousand".