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211222212002 = 23122722965537
BaseRepresentation
bin1100010010110111010…
…0110010110110100010
3202012012102212010021222
43010231310302312202
511430040341241002
6241011213015042
721155166115154
oct3045564626642
9665172763258
10211222212002
118164048317a
1234b29a84482
1316bc22a9cc9
14a31a6b6ad4
1557637a91a2
hex312dd32da2

211222212002 has 32 divisors (see below), whose sum is σ = 329934021120. Its totient is φ = 101308170240.

The previous prime is 211222211989. The next prime is 211222212011. The reversal of 211222212002 is 200212222112.

It is a happy number.

211222212002 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×2112222120022 (a number of 23 digits) contains 22 as substring.

It is an unprimeable number.

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 15 ways as a sum of consecutive naturals, for example, 3190178 + ... + 3255714.

It is an arithmetic number, because the mean of its divisors is an integer number (10310438160).

Almost surely, 2211222212002 is an apocalyptic number.

211222212002 is a deficient number, since it is larger than the sum of its proper divisors (118711809118).

211222212002 is a wasteful number, since it uses less digits than its factorization.

211222212002 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 66026.

The product of its (nonzero) digits is 128, while the sum is 17.

Adding to 211222212002 its reverse (200212222112), we get a palindrome (411434434114).

The spelling of 211222212002 in words is "two hundred eleven billion, two hundred twenty-two million, two hundred twelve thousand, two".

Divisors: 1 2 31 62 227 229 454 458 7037 7099 14074 14198 51983 65537 103966 131074 1611473 2031647 3222946 4063294 14876899 15007973 29753798 30015946 461183869 465247163 922367738 930494326 3406809871 6813619742 105611106001 211222212002