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12001222012002 = 232566777929001
BaseRepresentation
bin1010111010100100000010…
…0100110010110001100010
31120111022020210111202010020
42232221000210302301202
53033112000313341002
641305141342014310
72346026316646506
oct256510044626142
946438223452106
1012001222012002
113907764a55583
121419b00b77396
13690930920202
142d6c0dddc306
1515c2a53582bc
hexaea40932c62

12001222012002 has 16 divisors (see below), whose sum is σ = 24003379480032. Its totient is φ = 4000251428000.

The previous prime is 12001222011973. The next prime is 12001222012057. The reversal of 12001222012002 is 20021022210021.

It is a super-2 number, since 2×120012220120022 (a number of 27 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 38810499 + ... + 39118502.

It is an arithmetic number, because the mean of its divisors is an integer number (1500211217502).

Almost surely, 212001222012002 is an apocalyptic number.

12001222012002 is an abundant number, since it is smaller than the sum of its proper divisors (12002157468030).

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

12001222012002 is a wasteful number, since it uses less digits than its factorization.

12001222012002 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 77954673.

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

Adding to 12001222012002 its reverse (20021022210021), we get a palindrome (32022244222023).

The spelling of 12001222012002 in words is "twelve trillion, one billion, two hundred twenty-two million, twelve thousand, two".

Divisors: 1 2 3 6 25667 51334 77001 154002 77929001 155858002 233787003 467574006 2000203668667 4000407337334 6000611006001 12001222012002