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212211220002 = 2376283463649
BaseRepresentation
bin1100010110100011000…
…1100011111000100010
3202021202100211221012220
43011220301203320202
511434102033020002
6241253302531510
721221535415335
oct3055061437042
9667670757186
10212211220002
1181aa8779561
1235165136b96
131701c168c42
14a3b1ba261c
1557c05187bc
hex3168c63e22

212211220002 has 16 divisors (see below), whose sum is σ = 424428919200. Its totient is φ = 70735993472.

The previous prime is 212211219991. The next prime is 212211220003. The reversal of 212211220002 is 200022112212.

It is not an unprimeable number, because it can be changed into a prime (212211220003) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 225874 + ... + 689522.

It is an arithmetic number, because the mean of its divisors is an integer number (26526807450).

Almost surely, 2212211220002 is an apocalyptic number.

212211220002 is an abundant number, since it is smaller than the sum of its proper divisors (212217699198).

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

212211220002 is a wasteful number, since it uses less digits than its factorization.

212211220002 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 539937.

The product of its (nonzero) digits is 64, while the sum is 15.

Adding to 212211220002 its reverse (200022112212), we get a palindrome (412233332214).

The spelling of 212211220002 in words is "two hundred twelve billion, two hundred eleven million, two hundred twenty thousand, two".

Divisors: 1 2 3 6 76283 152566 228849 457698 463649 927298 1390947 2781894 35368536667 70737073334 106105610001 212211220002