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22200220212000 = 253537529245719
BaseRepresentation
bin1010000110000111001000…
…01111010101101100100000
32220121022122111221222012020
411003003210033111230200
510402212022333241000
6115114350153101440
74450625103162315
oct503034417255440
986538574858166
1022200220212000
11708a073607606
1225a66749b7880
13c5061967a31c
1456a6d4152d0c
1528772a7d5ba0
hex1430e43d5b20

22200220212000 has 192 divisors, whose sum is σ = 72737877139200. Its totient is φ = 5919248332800.

The previous prime is 22200220211999. The next prime is 22200220212007. The reversal of 22200220212000 is 21202200222.

It is a super-2 number, since 2×222002202120002 (a number of 27 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (15).

It is not an unprimeable number, because it can be changed into a prime (22200220212007) 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 31 ways as a sum of consecutive naturals, for example, 90225141 + ... + 90470859.

It is an arithmetic number, because the mean of its divisors is an integer number (378843110100).

Almost surely, 222200220212000 is an apocalyptic number.

22200220212000 is a gapful number since it is divisible by the number (20) 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 22200220212000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (36368938569600).

22200220212000 is an abundant number, since it is smaller than the sum of its proper divisors (50537656927200).

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

22200220212000 is a wasteful number, since it uses less digits than its factorization.

22200220212000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 253276 (or 253258 counting only the distinct ones).

The product of its (nonzero) digits is 128, while the sum is 15.

Adding to 22200220212000 its reverse (21202200222), we get a palindrome (22221422412222).

The spelling of 22200220212000 in words is "twenty-two trillion, two hundred billion, two hundred twenty million, two hundred twelve thousand".