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12020022210 = 23571759149383
BaseRepresentation
bin10110011000111001…
…01111101111000010
31011000200210101122210
423030130233233002
5144104111202320
65304422442550
7603603334350
oct131434575702
934020711583
1012020022210
115108a97659
1223b5593456
1311973550a1
148205507d0
154a53c80e0
hex2cc72fbc2

12020022210 has 256 divisors, whose sum is σ = 35831808000. Its totient is φ = 2518339584.

The previous prime is 12020022199. The next prime is 12020022211. The reversal of 12020022210 is 1222002021.

It is not an unprimeable number, because it can be changed into a prime (12020022211) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 127 ways as a sum of consecutive naturals, for example, 31383679 + ... + 31384061.

It is an arithmetic number, because the mean of its divisors is an integer number (139968000).

Almost surely, 212020022210 is an apocalyptic number.

12020022210 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 12020022210, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (17915904000).

12020022210 is an abundant number, since it is smaller than the sum of its proper divisors (23811785790).

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

12020022210 is a wasteful number, since it uses less digits than its factorization.

12020022210 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 625.

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

Adding to 12020022210 its reverse (1222002021), we get a palindrome (13242024231).

The spelling of 12020022210 in words is "twelve billion, twenty million, twenty-two thousand, two hundred ten".