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8991122102212 = 2219118304238187
BaseRepresentation
bin1000001011010110100010…
…1000111001011111000100
31011211112122202110220002011
42002311220220321133010
52134302304224232322
631042244154224004
71615405246612315
oct202655050713704
934745582426064
108991122102212
112957128035118
121012658725004
13502b227c1433
1423125b9b660c
15108d2e0bd677
hex82d68a397c4

8991122102212 has 12 divisors (see below), whose sum is σ = 16562593346320. Its totient is φ = 4258952574696.

The previous prime is 8991122102203. The next prime is 8991122102251. The reversal of 8991122102212 is 2122012211998.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 59152119018 + ... + 59152119169.

Almost surely, 28991122102212 is an apocalyptic number.

It is an amenable number.

8991122102212 is a deficient number, since it is larger than the sum of its proper divisors (7571471244108).

8991122102212 is a wasteful number, since it uses less digits than its factorization.

8991122102212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 118304238210 (or 118304238208 counting only the distinct ones).

The product of its (nonzero) digits is 20736, while the sum is 40.

The spelling of 8991122102212 in words is "eight trillion, nine hundred ninety-one billion, one hundred twenty-two million, one hundred two thousand, two hundred twelve".

Divisors: 1 2 4 19 38 76 118304238187 236608476374 473216952748 2247780525553 4495561051106 8991122102212